Timestamps, time zones and cron, without the guesswork

Is that field seconds or milliseconds? What is 1735689600 in Istanbul? Does `0 0 * * 1` fire on Sunday or Monday? Date and time questions are quick to ask and easy to get wrong, particularly across time zones and daylight saving boundaries.

These tools answer them with your browser's own time zone database, so the local time they show is the local time you actually have.