Delay up to 1 minute to clock update

[denilsonsa]

Someone complained on the Play Store. This widget updates once every minute, but it is not synchronized to the minute mark. That means this clock can be from zero to one minute late.

I've never developed for Android, so I'm not sure how to fix it. Maybe using BroadcastReceiver instead of alarmManager.setRepeating, but I have no idea how to implement it "the correct way".