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Unix Timestamp Converter

Convert Unix timestamps from logs, APIs, and databases into readable dates, or turn a date back into a Unix timestamp.

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Timestamp inputUnit

Local time

2026年3月30日 11:13:33

ISO time

2026-03-30T11:13:33.000Z

How timestamp conversion works

A Unix timestamp measures time since 1970-01-01 00:00:00 UTC. This tool supports both second-based and millisecond-based values.

Ten-digit values are usually seconds and thirteen-digit values are usually milliseconds.
Date input is interpreted in the browser local timezone.
Results show both a local display and an ISO UTC value.

Why does the same timestamp look different across systems?expand_more

The timestamp itself is UTC-based, but the human-readable display may be rendered in a local timezone.

How do I tell seconds from milliseconds?expand_more

Digit length is the usual clue, and this tool also lets you choose the unit directly for safer conversion.

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