A cron expression is five fields — minute · hour · day-of-month · month · day-of-week — that describe when something should run. * means "every." Pick the fields below, or tap a preset, and watch the schedule come alive. 👇
Build your schedule — pick each field
Or start from a preset
Your cron expression
minhourdaymonthweekday
⏰ Next few times it runs
Pretending "now" is Mon 1 Jun 2026, 08:00 UTC — here's when this schedule fires next:
Task + Trigger
A cron job = a task (what to do) + a trigger (the schedule, written by you). Pick a task:
You write the trigger once. The always-on server runs the task on time, forever — even at 3am while you're fast asleep. 😴
⏱️ vs ⚡ Two kinds of automation
Cron is time-driven: it runs on the clock, like an alarm. Some automations are event-driven instead — they fire when something happens (a message arrives, a file changes), not at a set time. Different tool for a different job!
That's the whole trick.
Five little numbers describe when — minute, hour, day, month, weekday — and your always-on server runs the task at exactly that moment, on its own.
* means "every." Write the trigger once, and that's how your AI quietly gets things done while you sleep. 🌙