diff --git a/src/helpers/time/formatDate.js b/src/helpers/time/formatDate.js
index c3e8c1b71a..afa3f70a37 100644
--- a/src/helpers/time/formatDate.js
+++ b/src/helpers/time/formatDate.js
@@ -1,5 +1,5 @@
 import {createDateFromString} from '@/helpers/time/createDateFromString'
-import {format, formatDistanceToNow} from 'date-fns'
+import {format, formatDistanceToNow, formatISO as formatISOfns} from 'date-fns'
 import {enGB, de, fr, ru} from 'date-fns/locale'
 
 import {i18n} from '@/i18n'
@@ -44,3 +44,7 @@ export const formatDateSince = (date) => {
 		addSuffix: true,
 	})
 }
+
+export function formatISO(date) {
+	return date ? formatISOfns(date) : ''
+}
diff --git a/src/main.ts b/src/main.ts
index 552e5c3d90..b4ed880a29 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -18,8 +18,7 @@ declare global {
 	}
 }
 
-import {formatDate, formatDateShort, formatDateLong, formatDateSince} from '@/helpers/time/formatDate'
-import {formatISO} from 'date-fns'
+import {formatDate, formatDateShort, formatDateLong, formatDateSince, formatISO} from '@/helpers/time/formatDate'
 // @ts-ignore
 import {VERSION} from './version.json'