Cron Expression Parser
Parse cron expressions and understand exactly when they run. Enter any standard 5-field Unix cron expression to see a plain-English description and the next 5 scheduled execution times. Supports wildcards (*), ranges (1-5), step values (*/15), and lists (1,3,5).
How to Use the Cron Expression Parser
- 1
Enter a cron expression
Type your 5-field cron expression in the input — for example: 30 2 * * 1-5 for "2:30am, Monday through Friday".
- 2
Read the plain-English description
The human-readable description appears below the input, explaining exactly when the schedule runs.
- 3
Check the next run times
The next 5 scheduled execution dates and times are listed with exact timestamps.
- 4
Adjust and iterate
Modify the expression to fine-tune the schedule — results update instantly.
Key Features
Plain English
Converts cryptic cron syntax to a human-readable description — no cron expertise required.
Next 5 Run Times
Shows the next 5 concrete scheduled dates and times to verify real-world behavior.
Private
Cron expressions never leave your browser — safe for internal scheduling configurations.
Pro Tips
The five fields in order are: minute (0-59), hour (0-23), day of month (1-31), month (1-12), day of week (0-7, where both 0 and 7 = Sunday).
0 9 * * 1-5 runs every weekday at 9:00am. */15 * * * * runs every 15 minutes. 0 0 1 * * runs at midnight on the 1st of each month.
Be careful with day-of-month and day-of-week — if both are specified (not *), the job runs when EITHER condition is met, not when both are met.
Privacy Note
All processing in this tool runs entirely in your browser — no data is transmitted to any server. Your input is never logged, stored, or shared. This tool is free to use with no account or registration required.
Frequently Asked Questions
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