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Comment by cygx | Hacker News Reader

Also [...] the time it takes to arrive back here

For reference:

    Voyager 1, interstellar space    21 lighthours
    Perseverance, Mars surface       12 lightminutes
    Artemis, lunar orbit            1.2 lightseconds

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Aren't those measures of distance?

Yes, but the data travels at approximately the speed of light, so you can just drop the "light" unit in front of the time units

But where’s the fun of pedantry in that?

Sure, but conversion to travel time is trivial given a signal velocity of c. Or just assume a 'natural' system of units where c=1 :p

Delete "light" and it's the answer.

Yeah, it takes me 2 trainhours to get to work.

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