Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Live clock, millisecond support, and one-click presets.

Current epoch time

updates every second

Seconds

1787487960

Milliseconds

1787487960564

ISO 8601

2026-08-23T12:26:00.564Z

Seconds1787487960

Milliseconds1787487960000

ISO 86012026-08-23T12:26:00.000Z

Timestamps below 10^12 are treated as seconds; anything larger is treated as milliseconds.

Timezones, DST, and the 2038 problem — the field notes every backend dev should keep.

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