Unix timestamp converter

Convert Unix seconds or milliseconds to a date, or turn a UTC date into a timestamp.

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Unix timestamp converter processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Your result

Enter your values to see the result.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

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Updated 2026-09-20

Using Unix timestamp converter

Pick seconds, milliseconds, microseconds or nanoseconds explicitly so a short or negative timestamp is not guessed incorrectly. The result preserves the entered precision in UTC and a chosen time zone. The date input is UTC.

A worked example

Unix timestamp 0 is January 1, 1970 at 00:00 UTC. Timestamp -1 is December 31, 1969 at 23:59:59 UTC.

Before you use the result

Dates are limited to years 0001–9999. Timestamp inputs retain up to nanosecond precision; the device clock supplies only milliseconds. The Discord handoff uses whole seconds. Unix time does not count leap seconds.

Next: Discord timestamp generator

Next: Julian date converter

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ToolOctopus. “Unix timestamp converter.” Updated 2026-09-20. https://tooloctopus.com/unix-timestamp-converter.

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