Cron Expression Parser & Visualizer

Translate 5-segment Unix and 6-segment Quartz cron expressions into plain English and preview upcoming run times.

Enter a 5-segment or 6-segment cron expression to translate and preview.

Human-Readable Schedule Translation (5-Segment (Unix))

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Seconds (0–59) 0
Minutes (0–59) 15
Hours (0–23) */2
Day of Month (1–31) 1
Month (1–12) *
Day of Week (0–6) *

Next 5 Scheduled Execution Timestamps

Run # UTC Timestamp (ISO 8601) Local Browser Time

Understanding 5-Field Unix & 6-Field Quartz Cron Expressions

Standard Unix crontabs use 5 space-separated fields (minute hour day-of-month month day-of-week), while enterprise schedulers such as Quartz, Spring, AWS EventBridge, and GitHub Actions support 6 fields with leading seconds or named day/month aliases (MON-FRI, JAN-DEC). This tool validates ranges, translates schedules into plain English, and computes the next 5 execution times locally.