How to Use
- 1
Enter a Unix timestamp (seconds or milliseconds) to convert it to a human-readable date and time.
- 2
Or click "Use Now" to populate the current timestamp and see the current date/time in all formats.
- 3
Switch to Date to Timestamp mode to convert a calendar date back to its Unix timestamp value.
Frequently Asked Questions
What is a Unix timestamp? ▼
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC (the Unix Epoch). It is the most common way computers store and exchange date/time data, independent of timezone.
Does it handle milliseconds? ▼
Yes. The converter auto-detects whether your input is in seconds (10 digits) or milliseconds (13 digits) and converts accordingly. JavaScript uses milliseconds by default; most Unix/Linux systems use seconds.
How do I get the current Unix timestamp? ▼
Click the "Use Now" button to populate the current timestamp. In code: Date.now() in JavaScript returns milliseconds, time.time() in Python returns seconds, and System.currentTimeMillis() in Java returns milliseconds.
What time zone does the converter use? ▼
The converted date is displayed in your local browser timezone. Unix timestamps themselves are timezone-agnostic (always UTC internally), so the same timestamp will display as a different local time in different timezones.