diff --git a/packages/editor/src/components/post-revisions-preview/revisions-slider.js b/packages/editor/src/components/post-revisions-preview/revisions-slider.js
index c902523875f6a8..55083a8244984d 100644
--- a/packages/editor/src/components/post-revisions-preview/revisions-slider.js
+++ b/packages/editor/src/components/post-revisions-preview/revisions-slider.js
@@ -35,11 +35,23 @@ function RevisionsSlider() {
 			}
 
 			const entityConfig = getEntityConfig( 'postType', postType );
+			const _revisionKey = entityConfig?.revisionKey || 'id';
 			const query = {
 				per_page: -1,
 				context: 'edit',
-				_fields:
-					'id,date,author,meta,title.raw,excerpt.raw,content.raw',
+				_fields: [
+					...new Set( [
+						'id',
+						'date',
+						'modified',
+						'author',
+						'meta',
+						'title.raw',
+						'excerpt.raw',
+						'content.raw',
+						_revisionKey,
+					] ),
+				].join(),
 			};
 			return {
 				revisions: getRevisions( 'postType', postType, postId, query ),
@@ -52,7 +64,7 @@ function RevisionsSlider() {
 				currentRevisionId: unlock(
 					select( editorStore )
 				).getCurrentRevisionId(),
-				revisionKey: entityConfig?.revisionKey || 'id',
+				revisionKey: _revisionKey,
 			};
 		},
 		[]
@@ -60,14 +72,21 @@ function RevisionsSlider() {
 
 	const { setCurrentRevisionId } = unlock( useDispatch( editorStore ) );
 
+	// Template revisions use the template REST API format, which exposes
+	// 'modified' instead of 'date'.
+	const revisionDateField = revisionKey === 'wp_id' ? 'modified' : 'date';
+
 	const sortedRevisions = useMemo( () => {
 		return (
 			revisions
 				?.slice()
-				.sort( ( a, b ) => new Date( a.date ) - new Date( b.date ) ) ??
-			[]
+				.sort(
+					( a, b ) =>
+						new Date( a[ revisionDateField ] ) -
+						new Date( b[ revisionDateField ] )
+				) ?? []
 		);
-	}, [ revisions ] );
+	}, [ revisions, revisionDateField ] );
 
 	const selectedIndex = sortedRevisions.findIndex(
 		( r ) => r[ revisionKey ] === currentRevisionId
@@ -87,7 +106,10 @@ function RevisionsSlider() {
 		if ( ! revision ) {
 			return index;
 		}
-		return dateI18n( dateSettings.formats.datetime, revision.date );
+		return dateI18n(
+			dateSettings.formats.datetime,
+			revision[ revisionDateField ]
+		);
 	};
 
 	if ( isLoading ) {
diff --git a/packages/editor/src/store/private-actions.js b/packages/editor/src/store/private-actions.js
index 133f346dd85d41..f8781626c51ccd 100644
--- a/packages/editor/src/store/private-actions.js
+++ b/packages/editor/src/store/private-actions.js
@@ -627,6 +627,11 @@ export const restoreRevision =
 		const postType = select.getCurrentPostType();
 		const postId = select.getCurrentPostId();
 
+		const entityConfig = registry
+			.select( coreStore )
+			.getEntityConfig( 'postType', postType );
+		const revisionKey = entityConfig?.revisionKey || 'id';
+
 		// Use resolveSelect to ensure the revision is fetched if not yet
 		// in the store. The _fields parameter matches the query used by
 		// getRevisions so the result is served from cache without an
@@ -635,8 +640,19 @@ export const restoreRevision =
 			.resolveSelect( coreStore )
 			.getRevision( 'postType', postType, postId, revisionId, {
 				context: 'edit',
-				_fields:
-					'id,date,author,meta,title.raw,excerpt.raw,content.raw',
+				_fields: [
+					...new Set( [
+						'id',
+						'date',
+						'modified',
+						'author',
+						'meta',
+						'title.raw',
+						'excerpt.raw',
+						'content.raw',
+						revisionKey,
+					] ),
+				].join(),
 			} );
 
 		if ( ! revision ) {
@@ -672,7 +688,12 @@ export const restoreRevision =
 			sprintf(
 				/* translators: %s: Date and time of the revision. */
 				__( 'Restored to revision from %s.' ),
-				dateI18n( getDateSettings().formats.datetime, revision.date )
+				dateI18n(
+					getDateSettings().formats.datetime,
+					// Template revisions use the template REST API format, which
+					// exposes 'modified' instead of 'date'.
+					revisionKey === 'wp_id' ? revision.modified : revision.date
+				)
 			),
 			{
 				type: 'snackbar',
diff --git a/packages/editor/src/store/private-selectors.js b/packages/editor/src/store/private-selectors.js
index 39bc47379924e9..05f85cec182881 100644
--- a/packages/editor/src/store/private-selectors.js
+++ b/packages/editor/src/store/private-selectors.js
@@ -390,6 +390,11 @@ export const getCurrentRevision = createRegistrySelector(
 		}
 
 		const { type: postType, id: postId } = getCurrentPost( state );
+		const entityConfig = select( coreStore ).getEntityConfig(
+			'postType',
+			postType
+		);
+		const revisionKey = entityConfig?.revisionKey || 'id';
 		// - Use getRevisions (plural) instead of getRevision (singular) to
 		//   avoid a race condition where both API calls complete around the
 		//   same time and the single revision fetch overwrites the list in the
@@ -404,19 +409,27 @@ export const getCurrentRevision = createRegistrySelector(
 			{
 				per_page: -1,
 				context: 'edit',
-				_fields:
-					'id,date,author,meta,title.raw,excerpt.raw,content.raw',
+				_fields: [
+					...new Set( [
+						'id',
+						'date',
+						'modified',
+						'author',
+						'meta',
+						'title.raw',
+						'excerpt.raw',
+						'content.raw',
+						revisionKey,
+					] ),
+				].join(),
 			}
 		);
 		if ( ! revisions ) {
 			return null;
 		}
-		const entityConfig = select( coreStore ).getEntityConfig(
-			'postType',
-			postType
+		return (
+			revisions.find( ( r ) => r[ revisionKey ] === revisionId ) ?? null
 		);
-		const revKey = entityConfig?.revisionKey || 'id';
-		return revisions.find( ( r ) => r[ revKey ] === revisionId ) ?? null;
 	}
 );
 
@@ -457,6 +470,11 @@ export const getPreviousRevision = createRegistrySelector(
 		}
 
 		const { type: postType, id: postId } = getCurrentPost( state );
+		const entityConfig = select( coreStore ).getEntityConfig(
+			'postType',
+			postType
+		);
+		const revisionKey = entityConfig?.revisionKey || 'id';
 		const revisions = select( coreStore ).getRevisions(
 			'postType',
 			postType,
@@ -464,27 +482,39 @@ export const getPreviousRevision = createRegistrySelector(
 			{
 				per_page: -1,
 				context: 'edit',
-				_fields:
-					'id,date,author,meta,title.raw,excerpt.raw,content.raw',
+				_fields: [
+					...new Set( [
+						'id',
+						'date',
+						'modified',
+						'author',
+						'meta',
+						'title.raw',
+						'excerpt.raw',
+						'content.raw',
+						revisionKey,
+					] ),
+				].join(),
 			}
 		);
 		if ( ! revisions ) {
 			return null;
 		}
 
+		// Template revisions use the template REST API format, which exposes
+		// 'modified' instead of 'date'. Regular post revisions use 'date'.
+		const revisionDateField = revisionKey === 'wp_id' ? 'modified' : 'date';
+
 		// Sort by date ascending (oldest first).
 		const sortedRevisions = [ ...revisions ].sort(
-			( a, b ) => new Date( a.date ) - new Date( b.date )
+			( a, b ) =>
+				new Date( a[ revisionDateField ] ) -
+				new Date( b[ revisionDateField ] )
 		);
 
 		// Find current revision index.
-		const entityConfig = select( coreStore ).getEntityConfig(
-			'postType',
-			postType
-		);
-		const revKey = entityConfig?.revisionKey || 'id';
 		const currentIndex = sortedRevisions.findIndex(
-			( r ) => r[ revKey ] === currentRevisionId
+			( r ) => r[ revisionKey ] === currentRevisionId
 		);
 
 		// Return the previous revision (older one) if it exists.