diff --git a/src/store/gui/getters.ts b/src/store/gui/getters.ts
index c0142e8e1..bdd6c980a 100644
--- a/src/store/gui/getters.ts
+++ b/src/store/gui/getters.ts
@@ -157,9 +157,7 @@ export const getters: GetterTree<GuiState, any> = {
         const setting = state.general.timeFormat
         if (setting === '12hours') return true
         if (setting === null) {
-            // create a time string, cut the last 2 chars and check if it contains AM or PM
-            const timeString = new Date().toLocaleString(navigator.language, { timeStyle: 'short' }).slice(-2)
-            if (['AM', 'PM'].includes(timeString)) return true
+            return Intl.DateTimeFormat(navigator.language, { hour: 'numeric' }).resolvedOptions().hour12
         }
 
         return false