Developer Utility Tool Free Interactive Tool · Zero Logging
Translate cron schedules into plain English and preview upcoming DST-aware execution timestamps. Translate 5-field, 6-field (seconds), and macro (@daily, L, W, #) cron expressions into plain English and calculate upcoming run times in any IANA timezone.
Enter any cron expression and IANA timezone and click Run Live Tool to see the plain-English description and next scheduled runs.
Powered by Cron Expression Explainer API (POST /v1/cron-explainer).
{
"ok": true,
"data": {
"valid": true,
"normalized_expression": "0 9 * * 1-5",
"format": "5-field",
"timezone": "Europe/Budapest",
"explanation": "At 09:00, Monday through Friday (Europe/Budapest)",
"fields": {
"seconds": "0",
"minutes": "0",
"hours": "9",
"day_of_month": "*",
"month": "*",
"day_of_week": "1-5"
},
"next_runs": [
{
"iso_utc": "2026-11-16T08:00:00.000Z",
"local_time": "2026-11-16T09:00:00+01:00",
"epoch_ms": 1794816000000,
"utc_offset": "+01:00"
},
{
"iso_utc": "2026-11-17T08:00:00.000Z",
"local_time": "2026-11-17T09:00:00+01:00",
"epoch_ms": 1794902400000,
"utc_offset": "+01:00"
},
{
"iso_utc": "2026-11-18T08:00:00.000Z",
"local_time": "2026-11-18T09:00:00+01:00",
"epoch_ms": 1794988800000,
"utc_offset": "+01:00"
},
{
"iso_utc": "2026-11-19T08:00:00.000Z",
"local_time": "2026-11-19T09:00:00+01:00",
"epoch_ms": 1795075200000,
"utc_offset": "+01:00"
},
{
"iso_utc": "2026-11-20T08:00:00.000Z",
"local_time": "2026-11-20T09:00:00+01:00",
"epoch_ms": 1795161600000,
"utc_offset": "+01:00"
}
],
"warnings": [],
"errors": []
},
"meta": {
"request_id": "req_cron_01",
"ms": 2
}
}
This browser tool runs on the exact same stateless Cloudflare Worker microservice as our production APIs. Subscribe on RapidAPI or Zyla API Hub to unlock up to 256 KB payloads and 500,000 monthly requests:
POST /v1/cron-explainer
Developer Utilities
Validate cron expressions, translate to plain English, and compute next N runs with DST.