My phone is showing European time after a trip

[AC Question]

I have just returned from a trip to mainland Europe, 1 hour ahead of UK. Whilst there my phone showed the correct time and also on standby home time as well. On returning to UK it is still an hour ahead but is no longer showing a dual time. I have a Galaxy S7 and have recently had a operating system update.

 

[jasonandrews25788]

it seems to be an issue with the automatic time zone option:
follow this tutorial
:How to change date and time settings on your Samsung Galaxy S7 | Android Central