Yes it is still wrong, should be GMT but showing GMT+1
Firefox
I tried clearing the browser testmy.net cookie entries but still the same.
Opened avast browser and run test, this was correct on GMT
Back to firefox, rerun still in error. Cleared cookies for testmy.net again. This time I had a different message regarding page reloading.
Retried the test and now correct GMT time.
It was probably the cookies and I just did not clear them correctly the first time.