I had the same problem. I shutdown my blaze, rebooted it (press the left and bottom right buttons for about 10 seconds). I did a force stop of the app on my phone, uninstalled it and reinstalled it, and forced blaze to unpair and then paired it back again. Some of these I did several times with absolutely no success! My Blaze had not synced for days and had the wrong time. About halfway through the next day, I looked at my phone and it finally said it had synced and had info from blaze for all the days it had missed. When I got home, Blaze was showing the right time again. I don't know what changed or if I did something right. I never heard from Fitbit, but clearly something went wrong with the most recent update. Hope this helps.
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