JSON-Utils

Unix Timestamp Converter

Convert between Unix timestamps and human dates. Seconds and milliseconds are detected by magnitude, ISO date strings parse too, and results show ISO 8601 and UTC forms so logs, tokens, and database values are easy to cross check.

Timestamp or date
Result
Converted values will appear here
Ready. Press Convert.

How to use the Unix Timestamp Converter

  1. Paste a timestamp or a date string.
  2. Press Convert.
  3. Read the ISO and UTC results and the detected unit.

Example

A seconds based timestamp for the start of 2026.

1767225600

Frequently asked questions

Seconds or milliseconds?

Values with a magnitude of 100 billion or more are treated as milliseconds, smaller values as seconds. The result line states which was detected.

Which timezone are results in?

ISO and UTC outputs are timezone free by definition. Your local time is shown as extra context only.