Battery Change Blew Everything Away

[homemade1]

I changed the battery on my Zip the other day.  All of a sudden, yesterday, all of the previous data from this week...Monday until Wednesday was gone.  Further, it now switches to the next day at 8 p.m. instead of midnight.  Not sure what to do.

[AlejandraFitbit]

Great to see you around @homemade1. Have you checked your timezone? If you haven't, I recommend doing it by following these steps from a computer:

1. Log into your fitbit.com dashboard and click the gear icon in the top right corner. 
2. Select “Settings” from the drop-down menu. 
3. Scroll down to the Time section and choose the time zone that best reflects your current location. You can also select 12-hour or 24-hour time display format here. 
4. Sync your tracker to update your time zone. 

I hope this helps, let me know the outcome.