Clock Built to Tell Time on Other Planets

Alexander Avtanski designed a clock that can be adjusted to keep time on many different planets based upon each one's rotation period -- at the same time. Here's what sets this clock apart from other extraterrestrial clocks, according to its builder:

  • It has 16 timers that can be independently paused and restarted, and can run forward or backward.

  • There are 16 alarms with configurable sounds and actions.

  • Timers can show Earth, Mars, Jupiter, etc. times at the same time.

  • How about sidereal time, Moon phase, Jupiter's Great Red Spot transit time, and anything periodic in general?


  • Avtanski provides comprehensive building instructions at the link.

    Link via Make | Previously: What Time Is It in Mars?

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    Asking what time it is on Mars is like asking what time it is on Earth; other planets have rotations and would need time zones just like we do. Or is there a Greenwich Mean Time-style standard for other planets?
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