diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index c08869db34b484..e7e904e5072eda 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -625,7 +625,7 @@ Display the publish date for an entry such as a post or page. ([Source](https://
 -	**Name:** core/post-date
 -	**Category:** theme
 -	**Supports:** color (background, gradients, link, text), interactivity (clientNavigation), spacing (margin, padding), typography (fontSize, lineHeight), ~~html~~
--	**Attributes:** displayType, format, isLink, textAlign
+-	**Attributes:** displayType, format, isLink, prefix, suffix, textAlign
 
 ## Excerpt
 
diff --git a/packages/block-library/src/post-date/block.json b/packages/block-library/src/post-date/block.json
index 176e5b6b0ee616..22791fbe9712e7 100644
--- a/packages/block-library/src/post-date/block.json
+++ b/packages/block-library/src/post-date/block.json
@@ -10,9 +10,17 @@
 		"textAlign": {
 			"type": "string"
 		},
+		"prefix": {
+			"type": "string",
+			"default": ""
+		},
 		"format": {
 			"type": "string"
 		},
+		"suffix": {
+			"type": "string",
+			"default": ""
+		},
 		"isLink": {
 			"type": "boolean",
 			"default": false
diff --git a/packages/block-library/src/post-date/edit.js b/packages/block-library/src/post-date/edit.js
index cfb5c572106008..1cad1cde81c771 100644
--- a/packages/block-library/src/post-date/edit.js
+++ b/packages/block-library/src/post-date/edit.js
@@ -13,6 +13,7 @@ import {
 	AlignmentControl,
 	BlockControls,
 	InspectorControls,
+	RichText,
 	useBlockProps,
 	__experimentalDateFormatPicker as DateFormatPicker,
 	__experimentalPublishDateTimePicker as PublishDateTimePicker,
@@ -30,7 +31,7 @@ import { DOWN } from '@wordpress/keycodes';
 import { useSelect } from '@wordpress/data';
 
 export default function PostDateEdit( {
-	attributes: { textAlign, format, isLink, displayType },
+	attributes: { textAlign, format, prefix, suffix, isLink, displayType },
 	context: { postId, postType: postTypeSlug, queryId },
 	setAttributes,
 } ) {
@@ -148,7 +149,6 @@ export default function PostDateEdit( {
 						</ToolbarGroup>
 					) }
 			</BlockControls>
-
 			<InspectorControls>
 				<PanelBody title={ __( 'Settings' ) }>
 					<DateFormatPicker
@@ -188,7 +188,27 @@ export default function PostDateEdit( {
 				</PanelBody>
 			</InspectorControls>
 
-			<div { ...blockProps }>{ postDate }</div>
+			<div { ...blockProps }>
+				<RichText
+					className="wp-block-post-date__prefix"
+					multiline={ false }
+					aria-label={ __( 'Prefix' ) }
+					placeholder={ __( 'Prefix' ) + ' ' }
+					value={ prefix }
+					onChange={ ( value ) => setAttributes( { prefix: value } ) }
+					tagName="span"
+				/>
+				{ postDate }
+				<RichText
+					className="wp-block-post-terms__suffix"
+					multiline={ false }
+					aria-label={ __( 'Suffix' ) }
+					placeholder={ ' ' + __( 'Suffix' ) }
+					value={ suffix }
+					onChange={ ( value ) => setAttributes( { suffix: value } ) }
+					tagName="span"
+				/>
+			</div>
 		</>
 	);
 }
diff --git a/packages/block-library/src/post-date/index.php b/packages/block-library/src/post-date/index.php
index bcfff02fc178d7..a64507ee38ff59 100644
--- a/packages/block-library/src/post-date/index.php
+++ b/packages/block-library/src/post-date/index.php
@@ -48,15 +48,27 @@ function render_block_core_post_date( $attributes, $content, $block ) {
 
 	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );
 
+	$prefix = '';
+	if ( isset( $attributes['prefix'] ) && $attributes['prefix'] ) {
+		$prefix = wp_kses_post( '<span class="wp-block-post-date__prefix">' . $attributes['prefix'] . '</span>' );
+	}
+
 	if ( isset( $attributes['isLink'] ) && $attributes['isLink'] ) {
 		$formatted_date = sprintf( '<a href="%1s">%2s</a>', get_the_permalink( $post_ID ), $formatted_date );
 	}
 
+	$suffix = '';
+	if ( isset( $attributes['suffix'] ) && $attributes['suffix'] ) {
+		$suffix = wp_kses_post( '<span class="wp-block-post-date__suffix">' . $attributes['suffix'] . '</span>' );
+	}
+
 	return sprintf(
-		'<div %1$s><time datetime="%2$s">%3$s</time></div>',
+		'<div %1$s>%2$s<time datetime="%3$s">%4$s</time>%5$s</div>',
 		$wrapper_attributes,
+		$prefix,
 		$unformatted_date,
-		$formatted_date
+		$formatted_date,
+		$suffix
 	);
 }
 
diff --git a/test/integration/fixtures/blocks/core__post-date.json b/test/integration/fixtures/blocks/core__post-date.json
index ec8dc784b3403b..8f061f73649b5e 100644
--- a/test/integration/fixtures/blocks/core__post-date.json
+++ b/test/integration/fixtures/blocks/core__post-date.json
@@ -4,7 +4,9 @@
 		"isValid": true,
 		"attributes": {
 			"isLink": false,
-			"displayType": "date"
+			"displayType": "date",
+			"prefix": "",
+			"suffix": ""
 		},
 		"innerBlocks": []
 	}