- On your iPhone, go to Settings > General > Date & Time
- Tap on the date and adjust the time manually using the picker (you'll only see the date if Set Automatically is off).
- On your Android phone, open Settings, then:
- Android 9 select System > Date and Time
- Android 8 select General Management > Date and Time
- Other versions select Date and Time
- Select Set date, then the desired date on the calendar, and tap Done
- Select Set time, then set the desired time on the clock, and tap Done