Unix Time Converter

Read an integer epoch value as a UTC date. Select seconds or milliseconds explicitly and compare both units in the result.

Use this entry when the source is a Unix timestamp from a log, API or test fixture. It shares the Timestamp Converter workspace.

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  1. 1Enter details
  2. 2Adjust options
  3. 3View result

ISO format with Z for UTC. Milliseconds are optional.

Your input stays on this device for this operation. We don’t upload or store it.

About Unix Time Converter

Use this entry when the source is a Unix timestamp from a log, API or test fixture. It shares the Timestamp Converter workspace.

Explicit units

The workspace does not guess the timestamp unit.

Copy or download

Save the UTC and epoch values together.

How to use Unix Time Converter

  1. 1

    Enter the epoch

    Paste the integer value.

  2. 2

    Select its unit

    Choose Seconds or Milliseconds based on the source.

  3. 3

    Convert and verify

    Read the UTC date and compare the two epoch units.

Formats and practical limits

Integer epoch with unit or UTC date → UTC ISO date and epoch report

  • Only safe integer input within the supported date range is accepted.
  • The result shows UTC and does not localize time for you.

Practical example

Enter 1000 with Milliseconds to get 1970-01-01T00:00:01.000Z.

Further reading

Frequently Asked Questions

1 answers
How do I identify the correct unit?

Check the field definition from the source. Treating milliseconds as seconds gives a different date.