Timestamp Converter
Convert between Unix timestamps and dates. Multi-timezone support.
How to Use the Timestamp Converter
- Paste a Unix timestamp — Seconds or milliseconds, the tool auto-detects which. The date appears as you type.
- Or click Now — Grab the current Unix time instantly.
- Read the result — You get the UTC ISO date, your local time, and both seconds and milliseconds forms.
- Go the other way — Pick a date and time below to convert it back into a timestamp.
What Is a Unix Timestamp, Really?
A Unix timestamp counts the seconds since January 1, 1970 UTC — the "epoch." It sounds like trivia until you're debugging at midnight: game server logs record event times as integers like 1762819200, APIs return expires_at fields in epoch seconds, and databases store created_at as a number. Converting that number to an actual date is the difference between guessing and knowing when a ban was issued or a token expires. This converter runs fully in your browser — paste a log line's timestamp, get the answer, close the tab. No data leaves your machine.
Seconds or Milliseconds?
Unix time is traditionally seconds, but JavaScript's Date.now() and many modern APIs use milliseconds. The tool detects the unit automatically — numbers of 10 digits or fewer are treated as seconds, longer ones as milliseconds — so both 1762819200 and 1762819200000 give you the same date.
Frequently Asked Questions
Which timezone does the result show?
Both. You get the UTC time (ISO format) and your browser's local timezone side by side, so there's no ambiguity.
What is the Year 2038 problem?
Systems storing Unix time as a 32-bit signed integer overflow on January 19, 2038. Modern 64-bit systems are unaffected — this tool handles dates far beyond that.
Can I convert a date back to a timestamp?
Yes — the lower section takes any date and time and returns both the seconds and milliseconds timestamps.