Timestamp
Convert a Unix timestamp online
Turn epoch into a date and back. Handy for logs, JWT and APIs.
What this timestamp converter can do
- Unix seconds and milliseconds
- Live clock of the current epoch
- Date to timestamp conversion
- Several output formats at once
- Shift time by minutes, hours or days
- Difference between two timestamps
How to convert a Unix timestamp
Enter a timestamp
Paste seconds or milliseconds — or press use-now for the current epoch.
Read the date
See the human-readable date in several formats at once.
Convert back
Enter a date to get its Unix timestamp.
Shift or compare
Add or subtract time, or measure the gap between two timestamps.
Frequently asked questions
Seconds or milliseconds?
Unix time is seconds since 1970-01-01 UTC; JavaScript's Date.now() returns milliseconds — a 13-digit value. Values below 10¹² are read as seconds, larger ones as milliseconds — a hint appears under the field.
Which timezone is shown?
Your browser's local timezone plus UTC-based formats, so you can compare them side by side.
What is the Unix epoch?
Midnight of January 1, 1970 UTC — the zero point from which Unix timestamps count seconds.
What is the year 2038 problem?
32-bit systems overflow at 03:14:07 UTC on 19 January 2038. Modern 64-bit timestamps are unaffected.