You can still see clocks in the UK from the late 19th century which have two minute hands: one for the local time and the other for the official Greenwich time.

You can still see clocks in the UK from the late 19th century which have two minute hands: one for the local time and the other for the official Greenwich time. The Bristol Exchange has a big one with the hands ten minutes apart, since that's the difference between local noon in Bristol and noon at Greenwich. Supposedly in Oxford you can still be 5 minutes and 2 seconds "late" for classes or meetings since that's the offset between there and Greenwich. I've only heard this third-hand - are there are any Oxonians out there who can confirm?