This is pretty simple and may have been already used somewhere.

world_clock_1

world_clock_2
Put the colored magnet on the map and use the corresponding colored short hand.

world_clock_6

world_clock_3
There’s no am/pm indicator and it will look crammed and hard to tell the time with more than 3 hands.

world_clock_4

world_clock_5

world_clock_2-5
For 30-minute time zones, use this +1/2 hand.



And here’s the version 2, which is much simpler. See the post.

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