Hold on just a minute
2025-01-08 18:35:24.010592+01 by Dan Lyke 0 comments
RT Erin 💽✨ @erincandescent@erincandescent.net
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.