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Timestamp Converter
Convert Unix timestamps (seconds or milliseconds — auto-detected) to human dates in UTC and your local time, with ISO 8601 and a relative "time ago" view. Or pick a date and get its epoch value. The live clock at the top shows the current Unix time.
Epoch → Date
Date → Epoch
What is a Unix timestamp?
It counts the seconds since 1 January 1970, 00:00:00 UTC — the "epoch". Computers store time this way because a single number has no timezone or format confusion. JavaScript and many APIs use milliseconds (13 digits) instead of seconds (10 digits); this converter detects which one you pasted by its length.
Frequently Asked Questions
Is my timestamp seconds or milliseconds?
Count the digits: 10 digits = seconds, 13 digits = milliseconds. This tool accepts both.
What happens in 2038?
Old 32-bit systems overflow on 19 January 2038. Modern 64-bit timestamps are fine for billions of years.
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