* means "every" — every minute, every hour, every day, etc.

How do I run a job every 15 minutes?

Use */15 in the minute field: */15 * * * *

What is the range for each field?

Minute: 0-59, Hour: 0-23, Day: 1-31, Month: 1-12, Weekday: 0-7 (0 and 7 are Sunday).

Can I use cron in Go?

Yes, use the github.com/robfig/cron library for cron jobs in Go applications.

Cron Expression Parser — Parse cron expressions and see the next scheduled run times.

How to use Cron Expression Parser

Paste your input on the left, choose the options you want, and the output appears instantly on the right. Everything runs in your browser — none of your data is sent to a server.

Paste or type your input in the INPUT panel
The output regenerates automatically as you type
Use Copy to put the result in your clipboard
Click Sample to load a working example

What is Cron Expression Parser?

Cron Expression Parser validates cron expressions and shows the next 10 scheduled execution times. It explains each field (minute, hour, day, month, weekday) in plain language, making it easy to debug complex schedules. This tool is part of santekno's developer toolbox — a curated collection of utilities built for engineers who care about speed, privacy, and simplicity.

Common use cases

Debugging API payloads and integration issues
Inspecting tokens, hashes, or encoded strings during development
Generating fixtures and sample data for tests
Sharing readable output with teammates in code reviews

FAQ

A cron expression is a string of 5 fields (minute, hour, day, month, weekday) that defines a recurring schedule.