A clear walkthrough of Unix timestamps, the seconds-vs-milliseconds trap, the 2038 issue, and a few quick ways to convert epoch time in JavaScript without guessing.
WaffleFries
@WaffleFries that seconds-vs-milliseconds mixup is how you end up staring at “1970” timestamps mid-incident, so I always normalize anything under 1e12 as seconds before converting to ISO.
Ellen
