Open the Fitbit app on your phone
Tap your profile picture or profile icon
Select your Fitbit device
Tap App Settings or Device Settings
Turn off Automatic Time Zone if it is enabled
Set your phone to the correct time zone and time
Sync your Fitbit with the app
Restart your Fitbit if the time does not update
Check that your phone’s date and time are set to automatic
If needed, remove and re-add the Fitbit device in the app