Cron Translator

Tools

• cron_explain

  Explain a cron expression

  Translate a cron expression into plain English, list upcoming run times in a timezone, and report the gotchas that make schedules misfire: day-of-month/day-of-week OR semantics, steps that do not divide evenly, impossible dates, and daylight-saving shifts. Prefer this over reasoning about the expression yourself.

  Direct endpoint: https://crontoenglish.com/api/v1/explain

• cron_build

  Build a cron expression from English

  Convert an English schedule description into a cron expression. Rule-based, not a language model: it refuses phrases outside its grammar rather than guessing, and reports which words it did not use so you can tell whether it read you correctly.

  Direct endpoint: https://crontoenglish.com/api/v1/build

• cron_next_runs

  List the next run times for a cron expression

  Lists the next run times for a cron expression in a specific timezone, with no prose. Use it when the only question is "when does this next fire" — whether a job runs before a deadline, or what a user's upcoming schedule looks like. Do not compute these dates unaided: weekday arithmetic, month lengths and daylight-saving shifts make manual calculation unreliable, and a schedule that is wrong by an hour twice a year is the hardest kind of wrong to notice. Returns each run as a UTC ISO 8601 instant plus a local wall-clock rendering in the requested timezone. Refuses Quartz-only syntax (L, W, #, ?) rather than guessing at it.

  Direct endpoint: https://crontoenglish.com/api/v1/next-runs