Private, browser-local utility
Cron Expression Generator
Build a standard five-field Unix cron expression from common schedule controls and preview upcoming local run times.
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Unix cron expression
Next five preview times
Dialect, timezone, and safety
V1 emits standard five-field Unix cron: minute, hour, day of month, month, and day of week. Sunday is 0; generated weekday ranges use 1–5 for Monday–Friday. It does not emit seconds, years, Quartz, AWS/EventBridge, Jenkins extensions, commands, or macros. No command field exists and nothing is executed.
Upcoming runs are calculated minute-by-minute in the browser's local timezone. The cron expression itself carries no timezone, so a server may interpret it differently. V1 avoids restricting day-of-month and day-of-week together.