Toolbox / Cron schedule explainer Runs in your browser中文
Development

Cron schedule explainer

Understand a schedule: */15 * * * * means every 15 minutes. Explain expressions and expected run times; no background jobs are created or executed.

Ctrl / ⌘ + Enter Run

Ready when you are

01

Add your contentPaste text or try a sample

02

Choose an actionClear options. Predictable results.

03

Take it with youCopy, download and carry on

Less switching. More focus.Functional build · Validation in progress

Using this tool

Explain Cron rules and preview the next five UTC occurrence times.

Actions: Validate & describe · Syntax reference

Example

Use five fields, 24-hour time, and 0=Sunday; this excerpt shows the fixed description, while subsequent dates depend on the current time.

Example action and settings

Action: Validate & describe
Include seconds (6 fields): Off
Verbose description: On
24-hour time: On
Weekday numbering: 0 = Sunday

Input / action

*/15 * * * *

Result / expected behavior

Every 15 minutes, every hour, every day

Available options: Include seconds (6 fields) · Verbose description · 24-hour time · Weekday numbering

Scope and limitations

  • Explains schedules without creating jobs; a real scheduler may use a different timezone or syntax.

Common mistakes

  • Enable seconds for six-field expressions; do not mistake the UTC preview for local time.

Related tools

ETA calculator

Privacy and browser support

Input is processed in this browser. Do not use real keys or active sensitive credentials as demonstration data. Device features require browser support and your permission.