fix: don’t use custom date formatter to compare dates

src/Pages/EmissionManager.vue

@@ -280,14 +280,10 @@ export default {
 
     timeslotsForDay() {
       return this.timeslots
-        .filter((timeslot) => {
-          const dateFormat = new Intl.DateTimeFormat('en', {
-            year: 'numeric',
-            month: '2-digit',
-            day: '2-digit',
-          })
-          return dateFormat.format(new Date(timeslot.start)) === dateFormat.format(this.selectedDay)
-        })
+        .filter(
+          (timeslot) =>
+            getISODateString(new Date(timeslot.start)) === getISODateString(this.selectedDay),
+        )
         .map((timeslot) => {
           const id = timeslot.show
           const show = this.getShow({ id })