4 ms·

Is a UTC day a different length to a common solar day? At this level of pre soon leap seconds and even sidereal day difference makes no difference

• buescher 2y ago
  Yes, but they probably mean "the next 72 hours from right now given in UTC".
  • chgs 2y ago
    Which would be the same as the next 72 hours in PST
  • Gare 2y ago
    Or maybe they mean "day" as starting from UTC midnight.
    • sevensor 2y ago
      Maybe they’re contrasting with sidereal days?
      • chgs 2y ago
        That was my initial thought, but that’s a difference of 10 mins over 3 days, and that’s orders of magnitudes more precise than should be used.
    • buescher 2y ago
      I'd guess that's actually more likely. Interesting bit of jargon.