What time does the post office shut on a saturday?

[OnZephyrstdayofXmas]

morning all! Just wondering if it's early - 12 or 1 - or if they stay open these days?
TIA!

12.30 here

Oh my goodness! You have a post office!!! They've just closed about 5 sub-post offices round here, so our nearest one is a bus journey into town. So useful.

Sorry, not helping much.....