All parts of the United Kingdom, including Wales, are in the same timezone.
England, Wales, Republic of Ireland and Northern Ireland all do.
Methuen, Massachusetts is five hours behind Wales. Wales is in the GMT timezone while Massachusetts is in the EST (GMT-5). Both observe daylight savings.
12am pacific timezone
Louisville is in the Eastern timezone.
Pottermore is British. It is in the GMT timezone.
Chile's continental timezone is UTC/GMT -4 Easter Island timezone is UTC/GMT -6
Neither, Germany is in the Central European Timezone.
the time zone you are arriving in is listed
The timezone is 1 hour later than Alberta's timezone
This answer is not exclusively true because the ends of the days overlap, but Australia is the only country which is significantly far away enough from England for it to be possible for it to be dark while it is midday in England. Scotland and Wales are even on the same timezone as England.
Eastern.