DST roll is now a global variable in watch_rtc

watch-library/simulator/watch/watch_rtc.c

@@ -39,6 +39,19 @@ ext_irq_cb_t btn_alarm_callback;
 ext_irq_cb_t a2_callback;
 ext_irq_cb_t a4_callback;
 
+static bool dst_skip_rolling_back;
+bool get_dst_skip_rolling_back(void) {
+    return dst_skip_rolling_back;
+}
+
+void set_dst_skip_rolling_back(void) {
+    dst_skip_rolling_back = true;
+}
+
+void clear_dst_skip_rolling_back(void) {
+    dst_skip_rolling_back = false;
+}
+
 bool _watch_rtc_is_enabled(void) {
     return true;
 }
@@ -57,6 +70,7 @@ void watch_rtc_set_date_time(watch_date_time date_time) {
         const date = new Date(year, month - 1, day, hour, minute, second);
         return date - Date.now();
     }, date_time.reg);
+    clear_dst_skip_rolling_back();
 }
 
 watch_date_time watch_rtc_get_date_time(void) {