UUUP Tools

Date & Time

Cron Parser — Explain 5-Field Expressions

Parse common 5-field Cron expressions in your browser. Breaks down minute, hour, day, month, and weekday fields into readable explanations for ops debugging and schedule review.

Quick switch→Cron Generator
CronSchedulerParser
Quick switch:Cron GeneratorTimestamp Converter

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Use cases

  • Verify a live Cron expression is written correctly
  • Translate Cron into a readable schedule description
  • Debug jobs that do not fire as expected

How to use

  1. Enter a 5-field Cron expression
  2. Review the parse result
  3. Check each field explanation and upcoming run times

Example input and output

Input

0 9 * * 1-5

Output

Weekdays at 09:00

FAQ

Does it support Quartz syntax?

It currently supports common 5-field Cron (minute hour day month weekday), without seconds or year fields.

How is this different from the Cron generator?

This tool explains existing expressions. Use the Cron generator when you want to assemble one visually.

Tools

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Cron Generator

Cron Generator — Build 5-Field Expressions

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Build standard 5-field Cron expressions (minute hour day month weekday) with field inputs and common presets. Useful for CI schedules, system crontabs, and ops planning.

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Timestamp Converter

Unix Timestamp Converter Online

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Convert Unix timestamps and date-times in your browser. Supports seconds, milliseconds, and microseconds with auto-detection, shows local and UTC time side by side, and can generate a timestamp from a date picker for log triage and API debugging.

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