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Cron expression explainer

Paste a 5-field cron expression to see exactly what each field means and get a plain-English summary. Useful for Apps Script triggers, CI schedules, and background jobs.

Field breakdown
FieldValueMeaning
Minute0at minute 0
Hour9at 9 AM
Day of month*every day
Month*every month
Day of week1-5on Monday–Friday
Summary
Runs at 9 AM on Monday–Friday.
Format reference
PositionFieldAllowed values
1stMinute0–59
2ndHour0–23
3rdDay of month1–31
4thMonth1–12
5thDay of week0–6 (Sun–Sat)

Special characters: * (any) · , (list) · - (range) · / (step)

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