Simple Web Tools beta

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates (local / UTC), and convert dates back to timestamps. Runs locally in your browser. No uploads.

Tip: Most APIs use seconds. Some logs use milliseconds.
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Timestamp → Date

Decode
local
-
utc
-

Status: Ready.

Date → Timestamp

Encode
seconds
-
milliseconds
-

Outputs are shown above (seconds & milliseconds).

Status: Ready.

FAQ

Help

Seconds or milliseconds?
If your timestamp has 13 digits, it’s usually milliseconds. 10 digits is usually seconds.

Does this upload my data?
No. This tool runs locally in your browser.

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