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   Erin 💽✨ (erincandescent@akko.erincandescent.net)'s status on Friday, 10-Jan-2025 04:12:56 JST Erin 💽✨

   Disadvantages of having a physics degree & being a bit of a timekeeping nerd:

   You know that most of the time when programmers are talking about UTC timestamps they actually mean UT1. (Except NTP. NTP is also developed by timekeeping nerds)
   
   RE: https://akko.erincandescent.net/objects/874224bb-0390-4b06-9095-37e6cc6118ce

   • Haelwenn /элвэн/ :triskell: likes this.
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     Erin 💽✨ (erincandescent@akko.erincandescent.net)'s status on Friday, 10-Jan-2025 04:13:20 JST Erin 💽✨

     in reply to

     • MOULE :RainbowLogo:
     • Becky

     @Beckydog @MOULE <points at lump of cesium> this thing isn’t thinking

     Haelwenn /элвэн/ :triskell: likes this.
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     Becky (beckydog@hydaelyn.coerthansnowstorm.online)'s status on Friday, 10-Jan-2025 04:13:21 JST Becky

     in reply to

     • MOULE :RainbowLogo:

     @erincandescent @MOULE

     BUT, what if the caesium doesn’t know this?

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     Erin 💽✨ (erincandescent@akko.erincandescent.net)'s status on Friday, 10-Jan-2025 04:13:23 JST Erin 💽✨

     in reply to

     Remember: If a "second" is 1/86400th of a day, its UT1

     If a "second" is "defined by taking the fixed numerical value of the caesium frequency, ΔνCs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9192631770 when expressed in the unit Hz, which is equal to s−1", its UTC/TAI.