Time on Apple watch differs from phone by one hour
Time on Apple Watch differs from phone by one hour
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It sounds like they are in different time zones. See the 'On your iPhone, iPad, iPod touch, or Apple Watch' section in:
How to get updated time zone information for your Apple device
If that is not the problem, the first (and simplest) thing to try if something isn’t working right is to restart your Apple Watch and its paired iPhone. If necessary (device not responding), try a forced restart. Both methods can be found here:
How to restart your Apple Watch - Apple Support
Restart your iPhone - Apple Support
If that doesn't help, the next steps would be to unpair and pair your watch again and restore from the backup just created. This should result in no loss of data. It deletes all temp and corrupted files and re-indexes the file system.
Unpair and erase your Apple Watch - Apple Support
Set up your Apple Watch - Apple Support