TIME.FOO / Time format guide
Make time unambiguous
Start with an example, confirm its unit and timezone, then copy the format you need.
Unix timestamps
Seconds and milliseconds are different units. The same number can represent different dates.
Dates with timezones
Z means UTC; +08:00 means eight hours ahead of UTC. Inputs without a timezone need a source zone.
Relative time
Relative expressions use the parsing instant as a reference. Shared links fix the result, so opening them later does not change it.