To change the time on a Fitbit, you'll need to adjust the time zone setting for your device on the Fitbit mobile app or desktop website.
This article explains how to set up Fitbit notifications to mirror some of your smartphone's notifications. These instructions apply to iOS and Android devices, and all Fitbits with an LCD can support ...
Restart > clean connections > use a different charger > replace the cable > bring the phone closer. Check Bluetooth connection > disconnect other Bluetooth devices > restart Fitbit app > check for ...