What time zones are used at the North Pole and South Pole?
After all, Santa can't afford to be late on Christmas Day.
Asked by: Gary Dineen, Ireland
The rotation of the Earth means that time zones are dictated by the lines of longitude connecting the two poles. But at the poles themselves, all these lines converge, meaning that technically the poles are in all the time zones simultaneously.
In practice, polar explorers and scientists simply choose whatever time zone is most convenient. Those working at McMurdo Station (pictured) in Antarctica, for example, have chosen to use New Zealand local time.
Subscribe to BBC Science Focus Magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Robert is a science writer and visiting professor of science at Aston University.
- Try your first 6 issues for just £9.99 when you subscribe to BBC Science Focus Magazine.
- Risk - free offer! Cancel at any time when you subscribe via Direct Debit.
- FREE UK delivery.
- Stay up to date with the latest developments in the worlds of science and technology.