The Unix timestamp will begin with 16 this Sunday

Re:The Unix timestamp will begin with 16 this Sunday by TheArcane on Saturday September 12, 2020 @03:12PM (#24454717)

And meter itself is defined as the length of the path traveled by light in vacuum during a time interval of 1/299,792,458 of a second.

So it's cyclic and doesn't make sense outside the earth reference frame

Edit: since 2019, 1 second is defined by taking the fixed numerical value of the caesium frequency ∆νCs, 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

So a second makes sense in the galactic scale at least as long as Caesium-133 is a stable isotope in that environment

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Re:The Unix timestamp will begin with 16 this Sunday by jiofih on Saturday September 12, 2020 @03:30PM (#24454858)

> Since 1967, the second has been defined as exactly "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom

> realisation of the metre is usually delineated (not defined) today in labs as 1579800.762042(33) wavelengths of helium-neon laser light in a vacuum

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