Cron Translator

Cron for every 15 minutes during business hours

Quarter-hourly between 09:00 and 17:59 on weekdays.

*/15 9-17 * * 1-5

Every 15 minutes between 09:00 and 17:59, Monday through Friday

Interpreted in UTC · approximately 25.71 runs per day

Things to check

Note
Interpreted in UTC
A cron expression has no timezone of its own — the scheduler's zone decides when it fires. These times are computed in UTC. The same expression on a host in another zone runs at a different moment.
Fix: Set the schedule timezone explicitly (TZ= or CRON_TZ= in crontab, `timeZone` in Kubernetes, or the scheduler's own setting). Vercel Cron Jobs always run in UTC.

Fields

Minute*/15: Every 15 minutes.
Hour9-17: At 09:00, 10:00, 11:00, 12:00, 13:00, 14:00, 15:00, 16:00 and 17:00.
Day of month*: Every day of the month.
Month*: Every month.
Day of week1-5: On Monday, Tuesday, Wednesday, Thursday and Friday.

Next runs

Wed, 2026-09-02, 16:002026-09-02T16:00:00.000Z
Wed, 2026-09-02, 16:152026-09-02T16:15:00.000Z
Wed, 2026-09-02, 16:302026-09-02T16:30:00.000Z
Wed, 2026-09-02, 16:452026-09-02T16:45:00.000Z
Wed, 2026-09-02, 17:002026-09-02T17:00:00.000Z
Wed, 2026-09-02, 17:152026-09-02T17:15:00.000Z
Wed, 2026-09-02, 17:302026-09-02T17:30:00.000Z
Wed, 2026-09-02, 17:452026-09-02T17:45:00.000Z

Try a different expression or timezone

Times above are in UTC. Pick a timezone here to see this schedule in local time.

Call this from code or an agent

curl 'https://crontoenglish.com/api/v1/explain?expression=*%2F15%209-17%20*%20*%201-5'

API and MCP setup · this page as markdown

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