Time
Timestamps and schedules, in any time zone.
Unix timestamp converterEpoch seconds or milliseconds ⇄ dates in any time zone, with a live clock1700000000 = 2023-11-14 22:13:20 UTCCron expression explainerPlain-English meaning of a crontab line and its next run times30 6 * * 1-5 → weekdays at 06:30Time zone converter & meeting plannerOne moment in several zones, with a 24-hour grid to find a slot that works for everyone14:00 Belgrade = 08:00 New York = 21:00 TokyoDate calculatorDays between two dates, business days, and add or subtract time from a date2026-01-01 → 2026-12-31 = 364 days, 261 working daysDuration converterSeconds ⇄ h:m:s ⇄ ISO 8601 durations (PT1H30M), in every unit5400 s = 1 h 30 min = PT1H30Msystemd timer OnCalendar explainerPlain English and next runs for OnCalendar= expressions, plus cron ⇄ systemd conversionMon..Fri *-*-* 06:30 → weekdays at 06:30