the order of year and month in the date picker is based on the order in long date format set by the user

src/components/mobile/DateRangeSelectionSheet.vue

@@ -24,6 +24,7 @@
                                  :week-start="firstDayOfWeek"
                                  :year-range="yearRange"
                                  :day-names="dayNames"
+                                 :year-first="isYearFirst"
                                  :is24="is24Hour"
                                  :partial-range="false"
                                  :preset-dates="presetRanges"
@@ -118,6 +119,9 @@ export default {
         dayNames() {
             return arrangeArrayWithNewStartIndex(this.$locale.getAllMinWeekdayNames(), this.firstDayOfWeek);
         },
+        isYearFirst() {
+            return this.$locale.isLongDateMonthAfterYear(this.userStore);
+        },
         is24Hour() {
             return this.$locale.isLongTime24HourFormat(this.userStore);
         },

src/components/mobile/DateTimeSelectionSheet.vue

@@ -22,6 +22,7 @@
                              :week-start="firstDayOfWeek"
                              :year-range="yearRange"
                              :day-names="dayNames"
+                             :year-first="isYearFirst"
                              v-model="dateTime">
                 <template #month="{ text }">
                     {{ getMonthShortName(text) }}
@@ -99,6 +100,9 @@ export default {
         },
         dayNames() {
             return arrangeArrayWithNewStartIndex(this.$locale.getAllMinWeekdayNames(), this.firstDayOfWeek);
+        },
+        isYearFirst() {
+            return this.$locale.isLongDateMonthAfterYear(this.userStore);
         }
     },
     beforeUnmount() {