GMT....same as the rest of the United Kingdom.
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
The timezone is 1 hour later than Alberta's timezone
the time zone you are arriving in is listed
Neither, Germany is in the Central European Timezone.
Eastern.
PST