Time at the poles

[jasper99]

How do you tell the time at the North or South pole? Presumably there is either no time at all or all times at once?

[Haitch]

It's easy to track movements in time when the Sun is up (Summer) as it revolves around the horizon. You should be able to tell when it's midday/midnight as the sun will be higher/lower in the sky (the Earth's axis isn't at 90% to the Sun). I guess in the Winter you could use the movement of the stars.

[Hippy]

You could always look at your watch!

[mykola]

probably 1 of the most interesting questions ive ever read.

[mikecabs]

During the winter, the movement of the stars at the horizon can be noted against fixed reference points to give a celestial clock. During the summer, exactly the same principle can be used with the sun, or a pole can be stood in the snow and increments marked around making a 360 dereesun dial