3 ms·

Is "time zone" even the correct term when we're looking at a different frame of reference? "Welcome to Hawaii, each day here is 23.4 hours." I thought the artic

• philip1209 3y ago
  It's a contraction rather than an offset. An interesting question is what the frame of reference for this time is - if the Moon's orbit changes significantly and the contraction factor changes, then this timezone shouldn't be adjusted - almost "de-pegging" it from Earth's time, right?
  • ISL 3y ago
    It isn't just the speed/shape of the orbit. The gravitational potential difference is a major factor.
• itishappy 3y ago
  Fascinating question! I wonder if GPS satellites use their own special "time zones" too? Apparently so! https://www.ipses.com/eng/in-depth-analysis/standard-of-time-definition/ https://www.ipses.com/eng/in-depth-analysis/standard-of-time...
  • onion2k 3y ago
    That page is a bit out of date. The last GPS week reset was in April 2019, when it rolled over to 0 again.
    • lxgr 3y ago
      The GPS week is a calendar issue and not really relevant to this "time zone" (more accurately: time scale?) discussion, though. It's also a non-issue for most applications since it's usually possible to figure out the current year with a precision of at least 9.8 years.