Something wrong with the timing

I have the same problem. playing yesterday evening and when starting this morning, 9 hours more for me?

Hello, same for me, the difference are offen more than 30 sec. and sometime more that one min.???

Mine is doing the same thing but it adds hours on. Played one yesterday logged out went back in this morning and it added 10 hours to my time?

Hi, I'm Luis a Xbox user just like you. Thanks for reaching out us here.
have you tried clearing the account's cache?

Delete account Cache

Remove Account:
1. Press the Xbox button.
2. Select System > Settings > Account > Remove accounts.
3. Select the account that you want to remove, and then Remove.
4. Close.

Power Cycle:
1. Turn off your console by holding the Xbox button on the front of the console for approximately 10 seconds. The console will turn off.

2. Wait for 5 minutes and then turn your console back on by pressing the Xbox button on the console or the Xbox button on your controller.

Add Account:
1. Press the Xbox button.
2. Select your gamerpic in the upper-left corner of the screen, move all the way down and select Add new.
3. Enter the Email Address and the Password.
4. Read the Microsoft Service Agreement and Privacy Statement, and then select I Accept.
5. Follow the steps to configure your Sign-In & Security preferences to add your Microsoft account to your Xbox console again.

After that, check your game time again