This is a fairly simple issue to resolve. First, please try restarting your device. If a restart does not work, you can try refreshing the time zone.
iOS
Open Medisafe
Tap on 'More'
Tap 'Settings'
Tap 'Refresh Reminder Times'
Android
Open Medisafe
Tap on 'More'
Tap 'Settings'
Tap 'General Settings'
Tap 'Refresh Reminder Times'
Still need help?