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Random Timestamp Generator

Generates a random ISO-8601 UTC timestamp between 2020-01-01 and 2030-12-31 — a test value, not a real event's recorded time.

What this generator does

Produces a machine-readable timestamp for seeding logs, database columns and API fixtures.

How to use this tool

  1. Press generate for a random timestamp.

Worked examples

Format
2026-08-09T14:37:52Z — ISO 8601, UTC

Common use cases

  • Placeholder timestamps for mock data
  • Testing date-parsing code
  • Sample data for documentation

How this generator works

A day between 2020-01-01 and 2030-12-31 and a second within it are drawn separately and shown as one ISO 8601 UTC timestamp; the range is fixed, and no Unix seconds or milliseconds form is shown.

Limitations and good to know

  • Always UTC, so a test that assumes local time will need to convert it.
  • Seconds and milliseconds are the two common Unix conventions and they are trivially confused. A seconds value read as milliseconds lands in January 1970.
  • The ISO form is in UTC, marked with a trailing Z. A local-time reading of it will be wrong by your offset.
  • Timestamps beyond 2038 exceed what a signed 32-bit seconds field can hold, and older systems will wrap rather than refuse.

A randomly generated test value — never a real event's recorded time.

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