Unix Timestamp Converter

Convert between Unix time and real dates

Computers often store time as a Unix timestamp — the number of seconds since the start of 1970 — because a single number is easy to store, sort, and compare. People can't read it, though. This converter translates a timestamp into a human date and time, and turns a date back into a timestamp, which is exactly what you need when reading logs, database rows, or API responses.

How to use it

1. Paste a Unix timestamp to see the date, or pick a date to get its timestamp.
2. Check whether your value is in seconds or milliseconds.
3. Copy the converted result.

Where it comes up

• Reading the created_at field of an API response.
• Matching a log entry to a real wall-clock time.
• Setting an expiry time expressed as a timestamp.

Questions people ask

Seconds or milliseconds? Unix time is traditionally seconds, but JavaScript and many APIs use milliseconds — a value with 13 digits is almost certainly milliseconds.

What about time zones? Timestamps are absolute; the human date is shown in your local zone unless stated otherwise.