Unix Timestamp Converter — Epoch Time Online Free
Convert Unix timestamps to human-readable dates and back. Live current timestamp, auto-detects seconds vs milliseconds.
🔒 Your file never leaves your browser. All conversions run locally.
Current Unix timestamp (seconds)
0
Thu, 01 Jan 1970 00:00:00 GMT
Timestamp → Human Date
Date → Timestamp
How to Convert Unix Timestamps Online
- 1
View the live timestamp
The current Unix timestamp updates every second so you always see the current epoch time.
- 2
Convert a timestamp to date
Paste a Unix timestamp (seconds or milliseconds) into the first converter to see the human-readable date and time.
- 3
Convert a date to timestamp
Enter a date and time in the second converter to get its Unix timestamp in both seconds and milliseconds.
Epoch time is the lingua franca of machines: databases store it, APIs return it, JWTs embed it, and log files are full of it. It is unambiguous — one integer, no timezones, no daylight-saving edge cases — which is precisely why humans cannot read it. This converter translates in both directions: paste 1784914053 to see the human date, or pick a date to get the epoch value an API expects.
Seconds vs. millisecondsis the most common stumble. Unix convention counts seconds (10 digits today), but JavaScript's Date.now() and many APIs return milliseconds (13 digits). Feed a millisecond value where seconds are expected and your date lands 50,000 years in the future. The tool auto-detects digit count so either form converts correctly.
Timezone honesty:a timestamp has no timezone — it is a moment, not a clock reading. The conversion shows that moment in both UTC and your local timezone, because "which wall-clock time does this correspond to?" depends entirely on where the wall is. When debugging, always compare timestamps in UTC first.
The 2038 footnote: systems storing epoch seconds in a signed 32-bit integer overflow on 19 January 2038. Modern platforms use 64 bits and are fine for the next 292 billion years. You will meet these values constantly in JWT claims (iat/exp) and in schedules built with the cron generator.