Tools / Timestamp Converter
Unix Timestamp Converter
Paste a timestamp (seconds or milliseconds) or a date string — this converts both directions, in UTC and your local time zone.
––––––10 digits = seconds, 13 digits = milliseconds. Dates are interpreted in your local time zone.
What is a Unix timestamp?
A Unix timestamp counts the seconds since 1970-01-01T00:00:00Z (the "epoch"). Databases, APIs and log files use it because it is a single number with no time zone attached — which is exactly why reading one by eye is hard.
How to use this converter
- Paste a timestamp or a date string.
- Press Convert — both directions are detected automatically.
- Copy any row you need.
FAQ
Seconds or milliseconds — how do I tell?
Count the digits: 10 digits is seconds, 13 is milliseconds. A 10-digit value now corresponds to dates between 2001 and 2286.
Why does my timestamp show a different date than expected?
Most likely a time zone issue. The ISO row is always UTC; the local row uses your device's time zone.
Does this handle leap seconds?
No. Unix time ignores leap seconds by design, and so does this converter.