diff --git a/src/mixins/localizeMoment.js b/src/mixins/localizeMoment.js
index 97503cb48..9121656d7 100644
--- a/src/mixins/localizeMoment.js
+++ b/src/mixins/localizeMoment.js
@@ -11,15 +11,22 @@ export default {
 		 * This only maps the locales that need to be translated.
 		 * Most PKP locales work fine in Moment.js.
 		 *
-		 * @param {String} locale The PKP locale, eg - `sr_RS@cyrillic`
+		 * @param {String} locale The PKP locale, eg - `sr_Cyrl`
 		 */
 		getMomentLocale(locale) {
+			locale.replaceAll('_', '-').toLowerCase();
 			const map = {
-				'sr_RS@latin': 'sr',
-				'sr_RS@cyrillic': 'sr-cyrl',
-				'uz_UZ@latin': 'uz-latn',
+				'bs-latn': 'bs',
+				hy: 'hy-am',
+				'nb-no': 'nb',
+				oc: 'oc-lnc',
+				pa: 'pa-in',
+				'pt-pt': 'pt',
+				'sr-latn': 'sr',
+				tl: 'tl-ph',
+				ug: 'ug-cn',
+				'zh-hans': 'zh-cn',
 			};
-
 			return map[locale] ?? locale;
 		},
 	},
diff --git a/src/pages/dashboard/mocks/pageInitConfig.js b/src/pages/dashboard/mocks/pageInitConfig.js
index 2593cbd21..8b5d07c59 100644
--- a/src/pages/dashboard/mocks/pageInitConfig.js
+++ b/src/pages/dashboard/mocks/pageInitConfig.js
@@ -427,17 +427,6 @@ export default {
 			_extractionAdaptersLoaded: false,
 			_metadataInjectionAdapters: [],
 			_injectionAdaptersLoaded: false,
-			_localesTable: {
-				'be@cyrillic': 'be',
-				bs: 'bs_Latn',
-				fr_FR: 'fr',
-				nb: 'nb_NO',
-				'sr@cyrillic': 'sr_Cyrl',
-				'sr@latin': 'sr_Latn',
-				'uz@cyrillic': 'uz',
-				'uz@latin': 'uz_Latn',
-				zh_CN: 'zh_Hans',
-			},
 		},
 		2: {
 			_data: {
@@ -475,17 +464,6 @@ export default {
 			_extractionAdaptersLoaded: false,
 			_metadataInjectionAdapters: [],
 			_injectionAdaptersLoaded: false,
-			_localesTable: {
-				'be@cyrillic': 'be',
-				bs: 'bs_Latn',
-				fr_FR: 'fr',
-				nb: 'nb_NO',
-				'sr@cyrillic': 'sr_Cyrl',
-				'sr@latin': 'sr_Latn',
-				'uz@cyrillic': 'uz',
-				'uz@latin': 'uz_Latn',
-				zh_CN: 'zh_Hans',
-			},
 		},
 	},
 	publicationTitleAbstractForm: {
diff --git a/src/utils/i18n.js b/src/utils/i18n.js
index ea8587667..0b66ff9a2 100644
--- a/src/utils/i18n.js
+++ b/src/utils/i18n.js
@@ -170,14 +170,21 @@ export function localizeSubmission(localizedString, submissionLocale) {
  * This only maps the locales that need to be translated.
  * Most PKP locales work fine in Moment.js.
  *
- * @param {String} locale The PKP locale, eg - `sr_RS@cyrillic`
+ * @param {String} locale The PKP locale, eg - `sr_Cyrl`
  */
 export function getMomentLocale(locale) {
+	locale.replaceAll('_', '-').toLowerCase();
 	const map = {
-		'sr_RS@latin': 'sr',
-		'sr_RS@cyrillic': 'sr-cyrl',
-		'uz_UZ@latin': 'uz-latn',
+		'bs-latn': 'bs',
+		hy: 'hy-am',
+		'nb-no': 'nb',
+		oc: 'oc-lnc',
+		pa: 'pa-in',
+		'pt-pt': 'pt',
+		'sr-latn': 'sr',
+		tl: 'tl-ph',
+		ug: 'ug-cn',
+		'zh-hans': 'zh-cn',
 	};
-
 	return map[locale] ?? locale;
 }