diff --git a/src/libraries/Microsoft.PowerFx.Core/Localization/Strings.cs b/src/libraries/Microsoft.PowerFx.Core/Localization/Strings.cs
index ebbeeb730f..840e877e99 100644
--- a/src/libraries/Microsoft.PowerFx.Core/Localization/Strings.cs
+++ b/src/libraries/Microsoft.PowerFx.Core/Localization/Strings.cs
@@ -393,6 +393,11 @@ internal static class TexlStrings
         public static StringGetter DateAddArg2 = (b) => StringResources.Get("DateAddArg2", b);
         public static StringGetter DateAddArg3 = (b) => StringResources.Get("DateAddArg3", b);
 
+        public static StringGetter AboutWorkday = (b) => StringResources.Get("AboutWorkday", b);
+        public static StringGetter WorkdayArg1 = (b) => StringResources.Get("WorkdayArg1", b);
+        public static StringGetter WorkdayArg2 = (b) => StringResources.Get("WorkdayArg2", b);
+        public static StringGetter WorkdayArg3 = (b) => StringResources.Get("WorkdayArg3", b);
+
         public static StringGetter AboutDateAddT = (b) => StringResources.Get("AboutDateAddT", b);
         public static StringGetter DateAddTArg1 = (b) => StringResources.Get("DateAddTArg1", b);
         public static StringGetter DateAddTArg2 = (b) => StringResources.Get("DateAddTArg2", b);
diff --git a/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs b/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
index 5822db9f2f..c05cbfaffc 100644
--- a/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
+++ b/src/libraries/Microsoft.PowerFx.Core/Texl/BuiltinFunctionsCore.cs
@@ -91,6 +91,7 @@ internal class BuiltinFunctionsCore
         public static readonly TexlFunction Date = _library.Add(new DateFunction());
         public static readonly TexlFunction DateAdd = _library.Add(new DateAddFunction());
         public static readonly TexlFunction DateAddT = _library.Add(new DateAddTFunction());
+        public static readonly TexlFunction Workday = _library.Add(new WorkdayFunction());
         public static readonly TexlFunction DateDiff = _library.Add(new DateDiffFunction());
         public static readonly TexlFunction DateDiffT = _library.Add(new DateDiffTFunction());
         public static readonly TexlFunction DateTime = _library.Add(new DateTimeFunction());
diff --git a/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/DateTime.cs b/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/DateTime.cs
index 56243875a4..571b189fbb 100644
--- a/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/DateTime.cs
+++ b/src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/DateTime.cs
@@ -620,8 +620,61 @@ public override bool CheckTypes(CheckTypesContext context, TexlNode[] args, DTyp
 
             return fValid;
         }
-    }
+    }
+
+    // Workday(timestamp: d, delta: n) : d
+    internal sealed class WorkdayFunction : BuiltinFunction
+    {
+        public override bool IsSelfContained => true;
+
+        public WorkdayFunction()
+            : base("Workday", TexlStrings.AboutWorkday, FunctionCategories.DateTime, DType.DateTime, 0, 2, 2, DType.DateTime, DType.Number)
+        {
+        }
+
+        public override IEnumerable<TexlStrings.StringGetter[]> GetSignatures()
+        {
+            yield return new[] { TexlStrings.WorkdayArg1, TexlStrings.WorkdayArg2 };
+        }
+
+        public override bool CheckTypes(CheckTypesContext context, TexlNode[] args, DType[] argTypes, IErrorContainer errors, out DType returnType, out Dictionary<TexlNode, DType> nodeToCoercedTypeMap)
+        {
+            Contracts.AssertValue(args);
+            Contracts.AssertAllValues(args);
+            Contracts.AssertValue(argTypes);
+            Contracts.Assert(args.Length == argTypes.Length);
+            Contracts.AssertValue(errors);
+            Contracts.Assert(MinArity <= args.Length && args.Length <= MaxArity);
+
+            var fValid = base.CheckTypes(context, args, argTypes, errors, out returnType, out nodeToCoercedTypeMap);
+            Contracts.Assert(returnType == DType.DateTime);
+
+            var type0 = argTypes[0];
 
+            if (fValid)
+            {
+                if (type0.Kind == DKind.Date || type0.Kind == DKind.DateTime || type0.Kind == DKind.Time)
+                {
+                    // Arg0 should be a Time, DateTime or Date.
+                    returnType = type0;
+                }
+                else if (nodeToCoercedTypeMap != null && nodeToCoercedTypeMap.TryGetValue(args[0], out var coercedType))
+                {
+                    // Or a type that can be coerced to it
+                    returnType = coercedType;
+                }
+                else
+                {
+                    fValid = false;
+                    errors.EnsureError(DocumentErrorSeverity.Severe, args[0], TexlStrings.ErrDateExpected);
+                    returnType = ReturnType;
+                }
+            }
+
+            return fValid;
+        }
+    }
+
     // DateDiff(startdate: d, enddate : d, [ unit: TimeUnits ]) : n
     internal sealed class DateDiffFunction : BuiltinFunction
     {
@@ -636,7 +689,7 @@ public DateDiffFunction()
 
         public override IEnumerable<TexlStrings.StringGetter[]> GetSignatures()
         {
-            yield return new[] { TexlStrings.DateDiffArg1, TexlStrings.DateDiffArg2 };
+            yield return new[] { TexlStrings.DateDiffArg1, TexlStrings.DateDiffArg2 };
             yield return new[] { TexlStrings.DateDiffArg1, TexlStrings.DateDiffArg2, TexlStrings.DateDiffArg3 };
         }
 
diff --git a/src/libraries/Microsoft.PowerFx.Interpreter/Functions/Library.cs b/src/libraries/Microsoft.PowerFx.Interpreter/Functions/Library.cs
index ab580f2dd0..fb8217350a 100644
--- a/src/libraries/Microsoft.PowerFx.Interpreter/Functions/Library.cs
+++ b/src/libraries/Microsoft.PowerFx.Interpreter/Functions/Library.cs
@@ -470,6 +470,22 @@ static Library()
                     returnBehavior: ReturnBehavior.ReturnBlankIfAnyArgIsBlank,
                     targetFunction: DateAdd)
             },
+            {
+                BuiltinFunctionsCore.Workday,
+                StandardErrorHandling<FormulaValue>(
+                    BuiltinFunctionsCore.Workday.Name,
+                    expandArguments: InsertDefaultValues(outputArgsCount: 2, fillWith: new BlankValue(IRContext.NotInSource(FormulaType.Blank))),
+                    replaceBlankValues: ReplaceBlankWith(
+                        new DateTimeValue(IRContext.NotInSource(FormulaType.DateTime), _epoch),
+                        new NumberValue(IRContext.NotInSource(FormulaType.Number), 0)),
+                    checkRuntimeTypes: ExactSequence(
+                        DateOrTimeOrDateTime,
+                        ExactValueTypeOrBlank<NumberValue>,
+                        StringOrOptionSetBackedByString),
+                    checkRuntimeValues: DeferRuntimeValueChecking,
+                    returnBehavior: ReturnBehavior.ReturnBlankIfAnyArgIsBlank,
+                    targetFunction: Workday)
+            },
             {
                 BuiltinFunctionsCore.DateDiff,
                 StandardErrorHandling<FormulaValue>(
diff --git a/src/libraries/Microsoft.PowerFx.Interpreter/Functions/LibraryDate.cs b/src/libraries/Microsoft.PowerFx.Interpreter/Functions/LibraryDate.cs
index 93b1c842d4..702cba068c 100644
--- a/src/libraries/Microsoft.PowerFx.Interpreter/Functions/LibraryDate.cs
+++ b/src/libraries/Microsoft.PowerFx.Interpreter/Functions/LibraryDate.cs
@@ -177,6 +177,68 @@ public static FormulaValue DateAdd(EvalVisitor runner, EvalVisitorContext contex
             }
         }
 
+        public static FormulaValue Workday(EvalVisitor runner, EvalVisitorContext context, IRContext irContext, FormulaValue[] args)
+        {
+            var timeZoneInfo = runner.TimeZoneInfo;
+
+            DateTime dateTime = runner.GetNormalizedDateTimeAllowTimeValue(args[0]);
+
+            int delta;
+            string timeUnit;
+
+            if (args[1] is NumberValue number)
+            {
+                delta = (int)number.Value;
+                timeUnit = "days";
+            }
+            else
+            {
+                //throw new NotImplementedException();
+                return CommonErrors.RuntimeTypeMismatch(args[1].IRContext);
+            }
+
+            var useUtcConversion = NeedToConvertToUtc(runner, dateTime, timeUnit);
+
+            if (useUtcConversion)
+            {
+                dateTime = TimeZoneInfo.ConvertTimeToUtc(dateTime, timeZoneInfo);
+            }
+
+            try
+            {
+                // Determine the increment direction (forward or backward)
+                int increment = delta > 0 ? 1 : -1;
+
+                // Add days until the required number of workdays is reached
+                while (delta != 0)
+                {
+                    dateTime = dateTime.AddDays(increment);
+
+                    // If the current date is a weekend, continue without decreasing days
+                    if (dateTime.DayOfWeek == DayOfWeek.Saturday || dateTime.DayOfWeek == DayOfWeek.Sunday)
+                    {
+                        continue;
+                    }
+
+                    // If it's a valid workday, decrement the days
+                    delta -= increment;
+                }
+
+                if (useUtcConversion)
+                {
+                    dateTime = TimeZoneInfo.ConvertTimeFromUtc(dateTime, timeZoneInfo);
+                }
+
+                dateTime = MakeValidDateTime(runner, dateTime, timeZoneInfo);
+
+                return new DateValue(irContext, dateTime);
+            }
+            catch
+            {
+                return CommonErrors.ArgumentOutOfRange(irContext);
+            }
+        }
+
         private static DateTime MakeValidDateTime(EvalVisitor runner, DateTime dateTime, TimeZoneInfo timeZoneInfo)
         {
             return MakeValidDateTime(runner.TimeZoneInfo, dateTime);
diff --git a/src/strings/PowerFxResources.bg-BG.resx b/src/strings/PowerFxResources.bg-BG.resx
index 70177a8fb0..5fc01e8b0a 100644
--- a/src/strings/PowerFxResources.bg-BG.resx
+++ b/src/strings/PowerFxResources.bg-BG.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Добавя указания брой единици към дадена дата.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Добавете брой работни дни преди или след дата.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Изчислява разликата между две дати.</value>
diff --git a/src/strings/PowerFxResources.ca-ES.resx b/src/strings/PowerFxResources.ca-ES.resx
index e25a232b67..9190585b2d 100644
--- a/src/strings/PowerFxResources.ca-ES.resx
+++ b/src/strings/PowerFxResources.ca-ES.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Afegeix el nombre d'unitats especificat a una data.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Afegir el nombre de dies laborables abans o després d’una data.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcula la diferència entre dues dates.</value>
diff --git a/src/strings/PowerFxResources.cs-CZ.resx b/src/strings/PowerFxResources.cs-CZ.resx
index d12a722d28..e41b8f5c25 100644
--- a/src/strings/PowerFxResources.cs-CZ.resx
+++ b/src/strings/PowerFxResources.cs-CZ.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Přičte ke kalendářnímu datu zadaný počet jednotek.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Přidejte počet pracovních dnů před nebo po datu.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Vypočítá rozdíl mezi dvěma kalendářními daty.</value>
diff --git a/src/strings/PowerFxResources.da-DK.resx b/src/strings/PowerFxResources.da-DK.resx
index a18e447fa1..6a50665619 100644
--- a/src/strings/PowerFxResources.da-DK.resx
+++ b/src/strings/PowerFxResources.da-DK.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Føj det angivne antal enheder til en dato.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Tilføj antal arbejdsdage før eller efter en dato.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Beregn forskellen mellem de to datoer.</value>
diff --git a/src/strings/PowerFxResources.de-DE.resx b/src/strings/PowerFxResources.de-DE.resx
index c42c4633ae..5373f2b105 100644
--- a/src/strings/PowerFxResources.de-DE.resx
+++ b/src/strings/PowerFxResources.de-DE.resx
@@ -2591,6 +2591,10 @@
     <value>Fügt einem Datum die angegebene Anzahl Einheiten hinzu.</value>
     
   </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Anzahl der Arbeitstage vor oder nach einem Datum hinzufügen.</value>
+    
+  </data>  
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Berechnet die Differenz zwischen zwei Datumswerten.</value>
     
diff --git a/src/strings/PowerFxResources.el-GR.resx b/src/strings/PowerFxResources.el-GR.resx
index a569d6ddce..4c06739726 100644
--- a/src/strings/PowerFxResources.el-GR.resx
+++ b/src/strings/PowerFxResources.el-GR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Προσθέτει τον καθορισμένο αριθμό μονάδων σε μια ημερομηνία.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Добавяне на брой работни дни преди или след дата.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Υπολογίζει τη διαφορά μεταξύ δύο ημερομηνιών.</value>
diff --git a/src/strings/PowerFxResources.en-US.resx b/src/strings/PowerFxResources.en-US.resx
index a01b3fcbdf..14a5c2a0b6 100644
--- a/src/strings/PowerFxResources.en-US.resx
+++ b/src/strings/PowerFxResources.en-US.resx
@@ -2591,6 +2591,10 @@
     <value>Add the specified number of units to a date.</value>
     <comment>Description of 'DateAdd' function.</comment>
   </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Add number of working days before or after a date.</value>
+    <comment>Description of 'Workday' function.</comment>
+  </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calculate the difference between two dates.</value>
     <comment>Description of 'DateDiff' function</comment>
diff --git a/src/strings/PowerFxResources.es-ES.resx b/src/strings/PowerFxResources.es-ES.resx
index 2af30f1bff..472cf8df83 100644
--- a/src/strings/PowerFxResources.es-ES.resx
+++ b/src/strings/PowerFxResources.es-ES.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Agregue el número especificado de unidades a una fecha.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Agregar el número de días hábiles antes o después de una fecha.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcule la diferencia entre dos fechas.</value>
diff --git a/src/strings/PowerFxResources.et-EE.resx b/src/strings/PowerFxResources.et-EE.resx
index 2bb2fd40d5..452d99ddd5 100644
--- a/src/strings/PowerFxResources.et-EE.resx
+++ b/src/strings/PowerFxResources.et-EE.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Lisab kuupäevale määratud arvu ühikuid.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Lisage tööpäevade arv enne või pärast kuupäeva.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Arvutab kahe kuupäeva vahelise erinevuse.</value>
diff --git a/src/strings/PowerFxResources.eu-ES.resx b/src/strings/PowerFxResources.eu-ES.resx
index 8e09e93c58..f05fb64f1e 100644
--- a/src/strings/PowerFxResources.eu-ES.resx
+++ b/src/strings/PowerFxResources.eu-ES.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Gehitu zehaztutako unitate kopurua data batean.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Gehitu lanegun kopurua data baten aurretik edo ondoren.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Kalkulatu bi daten arteko aldea.</value>
diff --git a/src/strings/PowerFxResources.fi-FI.resx b/src/strings/PowerFxResources.fi-FI.resx
index 4513f82e41..1df44b4fb7 100644
--- a/src/strings/PowerFxResources.fi-FI.resx
+++ b/src/strings/PowerFxResources.fi-FI.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Lisää määritetty määrä yksiköitä päivämäärään.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Päivämäärää edeltävien tai sen jälkeisten työpäivien määrän lisääminen.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Laske kahden päivämäärän välinen ero.</value>
diff --git a/src/strings/PowerFxResources.fr-FR.resx b/src/strings/PowerFxResources.fr-FR.resx
index b65d657ab4..b0809fb38a 100644
--- a/src/strings/PowerFxResources.fr-FR.resx
+++ b/src/strings/PowerFxResources.fr-FR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Ajouter le nombre spécifié d’unités à une date.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Ajouter le nombre de jours ouvrables avant ou après une date.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calculer l’écart entre deux dates.</value>
diff --git a/src/strings/PowerFxResources.gl-ES.resx b/src/strings/PowerFxResources.gl-ES.resx
index bba621d904..a44b54fc2a 100644
--- a/src/strings/PowerFxResources.gl-ES.resx
+++ b/src/strings/PowerFxResources.gl-ES.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Engade o número especificado de unidades a unha data.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Engadir número de días laborables antes ou despois dunha data.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcule a diferenza entre dúas datas.</value>
diff --git a/src/strings/PowerFxResources.hi-IN.resx b/src/strings/PowerFxResources.hi-IN.resx
index c9b33d2887..dd2bcdf2fd 100644
--- a/src/strings/PowerFxResources.hi-IN.resx
+++ b/src/strings/PowerFxResources.hi-IN.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>किसी दिनांक की निर्दिष्ट इकाईयों की संख्या जोड़ता है.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>तारीख से पहले या बाद में कार्य दिवसों की संख्या जोड़ें.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>दो दिनांकों के बीच अंतर की गणना करता है.</value>
diff --git a/src/strings/PowerFxResources.hr-HR.resx b/src/strings/PowerFxResources.hr-HR.resx
index 1fbde39d93..45d972ab28 100644
--- a/src/strings/PowerFxResources.hr-HR.resx
+++ b/src/strings/PowerFxResources.hr-HR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Dodavanje navedenog broja jedinica u datum.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Dodajte broj radnih dana prije ili poslije datuma.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Izračun razlike između dva datuma.</value>
diff --git a/src/strings/PowerFxResources.hu-HU.resx b/src/strings/PowerFxResources.hu-HU.resx
index 788401485c..61c12cd59c 100644
--- a/src/strings/PowerFxResources.hu-HU.resx
+++ b/src/strings/PowerFxResources.hu-HU.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Hozzáadja a megadott számú egységet egy dátumhoz.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Adja meg a munkanapok számát egy dátum előtt vagy után.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Kiszámítja a különbséget két dátum között.</value>
diff --git a/src/strings/PowerFxResources.id-ID.resx b/src/strings/PowerFxResources.id-ID.resx
index 611ae4ac2d..3f22755af3 100644
--- a/src/strings/PowerFxResources.id-ID.resx
+++ b/src/strings/PowerFxResources.id-ID.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Menambahkan jumlah unit yang ditentukan untuk tanggal.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Tambahkan jumlah hari kerja sebelum atau sesudah tanggal.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Menghitung Selisih dua tanggal.</value>
diff --git a/src/strings/PowerFxResources.it-IT.resx b/src/strings/PowerFxResources.it-IT.resx
index 84eed1060a..30199b106c 100644
--- a/src/strings/PowerFxResources.it-IT.resx
+++ b/src/strings/PowerFxResources.it-IT.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Aggiunge il numero di unità specificato a una data.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Aggiungi il numero di giorni lavorativi prima o dopo una data.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcola la differenza tra due date.</value>
diff --git a/src/strings/PowerFxResources.ja-JP.resx b/src/strings/PowerFxResources.ja-JP.resx
index b8ec6c3238..4577d9da84 100644
--- a/src/strings/PowerFxResources.ja-JP.resx
+++ b/src/strings/PowerFxResources.ja-JP.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>日付に、指定数の単位を追加します。</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>日付の前後の稼働日数を追加します。</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>2 つの日付の差を計算します。</value>
diff --git a/src/strings/PowerFxResources.kk-KZ.resx b/src/strings/PowerFxResources.kk-KZ.resx
index 1527828161..f5a164ca77 100644
--- a/src/strings/PowerFxResources.kk-KZ.resx
+++ b/src/strings/PowerFxResources.kk-KZ.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Бірліктердің көрсетілген санын күнге қосады.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Күннен бұрын немесе кейін жұмыс күндерінің санын қосыңыз.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Екі күн арасындағы аралықты есептеу.</value>
diff --git a/src/strings/PowerFxResources.ko-KR.resx b/src/strings/PowerFxResources.ko-KR.resx
index fc090c04fb..3bcaa4af3a 100644
--- a/src/strings/PowerFxResources.ko-KR.resx
+++ b/src/strings/PowerFxResources.ko-KR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>날짜에 지정된 단위 수를 추가합니다.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>날짜 전후의 근무일 수를 추가합니다.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>두 날짜 간 차이를 계산합니다.</value>
diff --git a/src/strings/PowerFxResources.lt-LT.resx b/src/strings/PowerFxResources.lt-LT.resx
index 774609d5f9..05c8345c33 100644
--- a/src/strings/PowerFxResources.lt-LT.resx
+++ b/src/strings/PowerFxResources.lt-LT.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Į datą įtraukti nurodytą vienetų skaičių.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Darbo dienų prieš datą arba po jos skaičiaus pridėjimas.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Apskaičiuoti skirtumą tarp dviejų datų.</value>
diff --git a/src/strings/PowerFxResources.lv-LV.resx b/src/strings/PowerFxResources.lv-LV.resx
index 6f1276da5d..657e431e6b 100644
--- a/src/strings/PowerFxResources.lv-LV.resx
+++ b/src/strings/PowerFxResources.lv-LV.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Pievienojiet norādīto vienību skaitu datumam.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Pievienojiet darba dienu skaitu pirms vai pēc datuma.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Aprēķiniet starpību starp diviem datumiem.</value>
diff --git a/src/strings/PowerFxResources.ms-MY.resx b/src/strings/PowerFxResources.ms-MY.resx
index 3eb843cecc..27347d9433 100644
--- a/src/strings/PowerFxResources.ms-MY.resx
+++ b/src/strings/PowerFxResources.ms-MY.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Tambahkan bilangan unit yang ditentukan pada tarikh.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Tambah bilangan hari bekerja sebelum atau selepas tarikh.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Kira perbezaan antara dua tarikh.</value>
diff --git a/src/strings/PowerFxResources.nb-NO.resx b/src/strings/PowerFxResources.nb-NO.resx
index 19dc9d047e..04fde6d575 100644
--- a/src/strings/PowerFxResources.nb-NO.resx
+++ b/src/strings/PowerFxResources.nb-NO.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Legger til det angitte antallet enheter i en dato.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Legg til antall arbeidsdager før eller etter en dato.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Beregn forskjellen mellom to datoer.</value>
diff --git a/src/strings/PowerFxResources.nl-NL.resx b/src/strings/PowerFxResources.nl-NL.resx
index e22d1cc8a3..6eb76f2cb3 100644
--- a/src/strings/PowerFxResources.nl-NL.resx
+++ b/src/strings/PowerFxResources.nl-NL.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Voeg het opgegeven aantal units toe aan een datum.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Voeg aantal werkdagen toe voor of na een datum.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Bereken het verschil tussen twee datums.</value>
diff --git a/src/strings/PowerFxResources.pl-PL.resx b/src/strings/PowerFxResources.pl-PL.resx
index eac8dc127f..2d7615c6df 100644
--- a/src/strings/PowerFxResources.pl-PL.resx
+++ b/src/strings/PowerFxResources.pl-PL.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Dodaj określoną liczbę jednostek do daty.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Dodaj liczbę dni roboczych przed lub po dacie.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Obliczanie różnicy dwóch dat.</value>
diff --git a/src/strings/PowerFxResources.pt-BR.resx b/src/strings/PowerFxResources.pt-BR.resx
index 11988a5d0a..e7130a0b46 100644
--- a/src/strings/PowerFxResources.pt-BR.resx
+++ b/src/strings/PowerFxResources.pt-BR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Adiciona o número especificado de unidades a uma data.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Adicionar número de dias úteis antes ou depois de uma data.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcula a diferença entre duas datas.</value>
diff --git a/src/strings/PowerFxResources.pt-PT.resx b/src/strings/PowerFxResources.pt-PT.resx
index fa46eebf43..5b4b1041e2 100644
--- a/src/strings/PowerFxResources.pt-PT.resx
+++ b/src/strings/PowerFxResources.pt-PT.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Adicione o número de unidades especificado a uma data.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Adicionar número de dias úteis antes ou depois de uma data.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calcule a diferença entre duas datas.</value>
diff --git a/src/strings/PowerFxResources.ro-RO.resx b/src/strings/PowerFxResources.ro-RO.resx
index b5b2d8b4b8..f1df8f07f4 100644
--- a/src/strings/PowerFxResources.ro-RO.resx
+++ b/src/strings/PowerFxResources.ro-RO.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Adăugați numărul de unități specificat la o dată.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Adăugați numărul de zile lucrătoare înainte sau după o dată.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Calculați diferența dintre două date.</value>
diff --git a/src/strings/PowerFxResources.ru-RU.resx b/src/strings/PowerFxResources.ru-RU.resx
index fdc66d1895..b975ec07dc 100644
--- a/src/strings/PowerFxResources.ru-RU.resx
+++ b/src/strings/PowerFxResources.ru-RU.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Добавить указанное количество единиц к дате.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Добавьте количество рабочих дней до или после даты.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Вычислить разницу между двумя датами.</value>
diff --git a/src/strings/PowerFxResources.sk-SK.resx b/src/strings/PowerFxResources.sk-SK.resx
index 1204cb17c8..6659db2da9 100644
--- a/src/strings/PowerFxResources.sk-SK.resx
+++ b/src/strings/PowerFxResources.sk-SK.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Pridá zadaný počet jednotiek do dátumu.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Pridajte počet pracovných dní pred alebo po dátume.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Vypočíta rozdiel medzi dvomi dátumami.</value>
diff --git a/src/strings/PowerFxResources.sl-SI.resx b/src/strings/PowerFxResources.sl-SI.resx
index 4bd3e2bd76..b478dfe9f9 100644
--- a/src/strings/PowerFxResources.sl-SI.resx
+++ b/src/strings/PowerFxResources.sl-SI.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Doda določeno število enot datumu.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Dodajte število delovnih dni pred ali po datumu.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Izračuna razliko med dvema datumoma.</value>
diff --git a/src/strings/PowerFxResources.sr-Cyrl-RS.resx b/src/strings/PowerFxResources.sr-Cyrl-RS.resx
index b1ed476515..c6a6d46698 100644
--- a/src/strings/PowerFxResources.sr-Cyrl-RS.resx
+++ b/src/strings/PowerFxResources.sr-Cyrl-RS.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Додајте наведени број јединица у датум.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Додајте број радних дана пре или после датума.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Израчунава разлику између два датума.</value>
diff --git a/src/strings/PowerFxResources.sr-Latn-RS.resx b/src/strings/PowerFxResources.sr-Latn-RS.resx
index 33fa9c278e..75bd5c43dd 100644
--- a/src/strings/PowerFxResources.sr-Latn-RS.resx
+++ b/src/strings/PowerFxResources.sr-Latn-RS.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Dodajte navedeni broj jedinica u datum.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Dodajte broj radnih dana pre ili posle datuma.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Izračunava razliku između dva datuma.</value>
diff --git a/src/strings/PowerFxResources.sv-SE.resx b/src/strings/PowerFxResources.sv-SE.resx
index cd75a57bd5..7ea5594963 100644
--- a/src/strings/PowerFxResources.sv-SE.resx
+++ b/src/strings/PowerFxResources.sv-SE.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Lägg till det angivna antalet enheter till ett datum.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Lägg till antal arbetsdagar före eller efter ett datum.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Beräkna skillnaden mellan två datum.</value>
diff --git a/src/strings/PowerFxResources.th-TH.resx b/src/strings/PowerFxResources.th-TH.resx
index 45ed95b34e..b5174aecdd 100644
--- a/src/strings/PowerFxResources.th-TH.resx
+++ b/src/strings/PowerFxResources.th-TH.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>เพิ่มตัวเลขของหน่วยที่ระบุไปยังวันที่</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>เพิ่มจำนวนวันทำงานก่อนหรือหลังวันที่</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>คำนวณผลต่างระหว่างวันที่</value>
diff --git a/src/strings/PowerFxResources.tr-TR.resx b/src/strings/PowerFxResources.tr-TR.resx
index b697e9e901..75af8d151f 100644
--- a/src/strings/PowerFxResources.tr-TR.resx
+++ b/src/strings/PowerFxResources.tr-TR.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Belirtilen birim sayısını tarihe ekler.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Bir tarihten önce veya sonra çalışma günü sayısını ekleyin.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>İki tarih arasındaki farkı hesaplar.</value>
diff --git a/src/strings/PowerFxResources.uk-UA.resx b/src/strings/PowerFxResources.uk-UA.resx
index 1408743697..60cd533136 100644
--- a/src/strings/PowerFxResources.uk-UA.resx
+++ b/src/strings/PowerFxResources.uk-UA.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Додавання до дати вказаної кількості одиниць вимірювання.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Додайте кількість робочих днів до або після дати.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Обчислення різниці між двома датами.</value>
diff --git a/src/strings/PowerFxResources.vi-VN.resx b/src/strings/PowerFxResources.vi-VN.resx
index 149a0bf00e..675a6eb3fe 100644
--- a/src/strings/PowerFxResources.vi-VN.resx
+++ b/src/strings/PowerFxResources.vi-VN.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>Thêm số đơn vị được chỉ định cho một ngày.</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>Thêm số ngày làm việc trước hoặc sau một ngày.</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>Tính chênh lệch giữa hai ngày.</value>
diff --git a/src/strings/PowerFxResources.zh-CN.resx b/src/strings/PowerFxResources.zh-CN.resx
index 274070293d..36f7a2806e 100644
--- a/src/strings/PowerFxResources.zh-CN.resx
+++ b/src/strings/PowerFxResources.zh-CN.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>向日期添加指定数量的单位。</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>添加日期前后的工作日数。</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>计算两个日期之差。</value>
diff --git a/src/strings/PowerFxResources.zh-TW.resx b/src/strings/PowerFxResources.zh-TW.resx
index c34aecd7b0..17e984c805 100644
--- a/src/strings/PowerFxResources.zh-TW.resx
+++ b/src/strings/PowerFxResources.zh-TW.resx
@@ -2590,6 +2590,10 @@
   <data name="AboutDateAdd" xml:space="preserve">
     <value>對日期新增指定的單位數。</value>
     
+  </data>
+  <data name="AboutWorkday_date" xml:space="preserve">
+    <value>新增日期前後的工作天數。</value>
+    
   </data>
   <data name="AboutDateDiff" xml:space="preserve">
     <value>計算兩個日期之間的差異。</value>
diff --git a/src/tests/Microsoft.PowerFx.Core.Tests.Shared/ExpressionTestCases/Workday.txt b/src/tests/Microsoft.PowerFx.Core.Tests.Shared/ExpressionTestCases/Workday.txt
new file mode 100644
index 0000000000..1e369773c3
--- /dev/null
+++ b/src/tests/Microsoft.PowerFx.Core.Tests.Shared/ExpressionTestCases/Workday.txt
@@ -0,0 +1,50 @@
+>> Workday(Date(2024,9,13), 10)
+Date(2024,9,27)
+
+>> Workday(Date(2024,9,13), -10)
+Date(2024,8,30)
+
+>> Workday(45565,1)
+Date(2024,10,1)
+
+>> Workday(Date(2024,9,30), "true")
+<Error: The value 'true' cannot be converted to a number.>
+
+>> DateAdd(false, 1)
+Error 8-13: Invalid argument type (Boolean). Expecting a DateTime value instead.
+Error 0-7: The function 'DateAdd' has some invalid arguments.
+
+>> Workday("false",1)
+<Error: The date or time value cannot be parsed.>
+
+>> Workday([Date(2000,1,1)],1)
+Error 8-24: Invalid argument type (Table). Expecting a DateTime value instead.
+
+Error 0-7: The function 'Workday' has some invalid arguments.
+>> Workday(null,1)
+Error 8-12: Use of a reserved word that is currently not supported.
+Error 8-12: Invalid argument type (Error). Expecting a DateTime value instead.
+Error 0-7: The function 'Workday' has some invalid arguments.
+
+>> Workday(Date(2024,9,30), null)
+Error 25-29: Use of a reserved word that is currently not supported.
+Error 25-29: Invalid argument type (Error). Expecting a Number value instead.
+Error 0-7: The function 'Workday' has some invalid arguments.
+
+>> Workday(Date(2024,9,30), [])
+Error 25-27: Invalid argument type (Table). Expecting a Number value instead.
+Error 0-7: The function 'Workday' has some invalid arguments.
+
+>> Workday(,)
+Error 8-9: Unexpected characters. Characters are used in the formula in an unexpected way.
+Error 9-10: Unexpected characters. Characters are used in the formula in an unexpected way.
+Error 10-10: Unexpected characters. The formula contains 'Eof' where 'ParenClose' is expected.
+Error 8-9: Invalid argument type (Error). Expecting a DateTime value instead.
+Error 9-10: Invalid argument type (Error). Expecting a Number value instead.
+Error 0-7: The function 'Workday' has some invalid arguments.
+
+>> Workday(DateTimeValue(\"1 Jan 2015\"), 2))
+Error 22-23: Unexpected characters. Characters are used in the formula in an unexpected way.
+Error 23-36: Expected operator. We expect an operator such as +, *, or & at this point in the formula.
+Error 36-37: Unexpected characters. Characters are used in the formula in an unexpected way.
+Error 0-42: Invalid number of arguments: received 1, expected 2.
\ No newline at end of file
diff --git a/src/tests/Microsoft.PowerFx.Core.Tests.Shared/TexlTests.cs b/src/tests/Microsoft.PowerFx.Core.Tests.Shared/TexlTests.cs
index 69196a9c9d..a8985af698 100644
--- a/src/tests/Microsoft.PowerFx.Core.Tests.Shared/TexlTests.cs
+++ b/src/tests/Microsoft.PowerFx.Core.Tests.Shared/TexlTests.cs
@@ -93,6 +93,8 @@ public void TexlDateOverloads_Negative(string script)
         [InlineData("DateAdd(\"2000-01-01\", 1)", "d")] // Coercion on date argument from string
         [InlineData("DateAdd(45678, 1)", "d")] // Coercion on date argument from number
         [InlineData("DateAdd(Time(12,34,56), 1)", "T")] // Coercion on date argument from time
+        [InlineData("Workday(Date(2024,9,13),999)", "D")]
+        [InlineData("Workday(Date(2024,9,13),-101)", "D")]
         public void TexlDateAdd(string script, string expectedType)
         {
             Assert.True(DType.TryParse(expectedType, out var type));