How to set the date and time?

The watch itself does not do timing by itself, it just reads and follows your smartphone’s time and format. When you successfully pair your watch with the H Band app via Bluetooth on your smartphone, the time and date on the watch will automatically update according to the settings on your smartphone. In case this doesn’t work, you can try to reconnect ( Mine > H39PLUS > Disconnect ) or logout from the H Band app ( Mine > Logout ) and login again to re-pair it.