Cron Expression Parser

See the next five fire times for a 5- or 6-field cron expression.

Calculated Result

2026-09-08T08:45:00.000Z

2026-09-08T09:00:00.000Z · 2026-09-08T09:15:00.000Z · 2026-09-08T09:30:00.000Z · 2026-09-08T09:45:00.000Z

Formula: min hour day-of-month month day-of-week (optional seconds first)

About this calculator

Type */15 * * * * or a six-field expression with seconds first. Times are ISO in the browser’s local zone converted to UTC display.

FormulaNext runs from 5- or 6-field cron

Expand lists, ranges, and steps, then walk minute (or second) ticks until five matches.

Beautify, minify, and validate JSON without sending it to a server.

Encode or decode UTF-8 text as RFC 4648 Base64.

Convert CSV tables to JSON objects and back.

Break a query onto keyword lines.