Tempo Cron Explorer
ChatGPT pluginCron runs across timezones
Developer utility for explaining numeric five-field cron schedules and calculating upcoming runs after an explicit reference timestamp in an IANA timezone. See the matched values for each field, local times, UTC offsets, UTC instants, and a downloadable JSON report. Edit the schedule or try quarter-hour and weekday presets.
Supports numeric wildcards, lists, ascending ranges, and steps. Sunday is 0 or 7. Day-of-month and day-of-week use Vixie cron semantics: if either field begins with *, both must match; otherwise either may match. This includes star-prefixed step expressions.
The simulation skips nonexistent local times and returns both instances of repeated local times, making daylight-saving transitions visible. Scheduler dialects and runtime policies may differ.
Limits: five numeric fields only, reference years 1970–2095, at most 20 occurrences, search horizon of 1,830 days. Partial results do not mean a schedule can never run. No month or weekday names, macros, seconds, years, ?, L, W, #, commands, job installation, execution, or monitoring.
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Developer tools797th of 900 by placement
| # | Plugin | Position | 7d |
|---|---|---|---|
| 795 | #9777 | — | |
| 796 | #9778 | — | |
| 797 | #9788 | 790places down | |
| 798 | #9790 | — | |
| 799 | #9869 | — |
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Example prompts
- “Find 3 cron runs for */15 * * * * after 2026-01-01T00:00:00Z in UTC.”
- “Find 3 cron runs for 30 1 * * * after 2026-11-01T00:00:00Z in America/New_York.”
- “Explain 0 9 1 * 1 and find 3 runs after 2026-01-01T00:00:00Z in UTC.”
Skills
cron-explorer
Explain numeric five-field cron and calculate upcoming runs from an explicit reference timestamp and IANA timezone.
- Categories
- Sign-in
- On Install
- Capabilities
- Interactive, Read
- Availability
- Available
- Version
- 1.0.0
- Keywords
- cron expression, cron next run, cron timezone, cron schedule, daylight saving, developer utility
- Created
- October 15, 2026
- More info
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- Promote this plugin