Tooloat

Cron expression parser

Type a cron schedule and read what it means, then check the next runs in the time zone you care about. Edit each field separately, try presets such as every 15 minutes or weekdays at 8:30, and use the seconds field if your scheduler has one.

Tooloat runs in your browser and needs JavaScript. It opens in a moment, and your files are processed on your device.

How it works

  1. Enter a cron expression or pick a preset.
  2. Read the plain English description.
  3. Check the upcoming run times in your time zone.

Why use it

  • Plain English explanation.
  • Next 5 to 50 runs.
  • Any IANA time zone.
  • Five or six field expressions.

Questions and answers

What does */15 mean?

It means every 15 units of that field, so */15 in the minutes field runs at minute 0, 15, 30 and 45.

Does it support seconds?

Yes. A six field expression uses the first field for seconds.

Are the run times exact?

They are calculated from the expression and the chosen time zone, including daylight saving changes.

Related tools