Unix Timestamp Converter

Epoch time to a human date — and a date back to epoch time.

FREE TOOL · WORKS OFFLINE · NO SIGN-UP

⏱️ Timestamp → Date

Seconds and milliseconds are detected automatically.

Date & time (UTC)
—
Date & time (your local zone)
—
Relative
—

📅 Date → Timestamp

Timestamp (seconds)
—
Timestamp (milliseconds)
—

🔴 Current Unix Timestamp

Seconds since epoch
—
Milliseconds since epoch
—

Updates every second.

🛠️ How to Use This Timestamp Converter

  1. 1.Paste a timestamp. Seconds (10 digits) or milliseconds (13 digits) — the tool detects which one you pasted and says so.
  2. 2.Read it two ways. You get the exact UTC date and time plus the same moment in your own local time zone, and a plain-English "time ago" reading.
  3. 3.Go the other way. Pick any date and time in the second box to get its timestamp in seconds and in milliseconds — handy for code, databases and APIs.
  4. 4.Grab the current time. The live ticker shows the current Unix timestamp; copy it with one click for logs, tests or seed data.
  5. 5.Negative numbers work too. A timestamp before 1970, like -86400, simply counts backwards from the epoch — it shows 31 December 1969.

❓ FAQ

What is a Unix timestamp?

A Unix timestamp is a single number: the count of seconds that have passed since 00:00:00 UTC on 1 January 1970 — a moment called the Unix epoch. Computers store time this way because one number is easy to save, sort and compare, whatever the time zone.

Is my timestamp in seconds or milliseconds?

Count the digits. A 10-digit timestamp is in seconds (current dates start with 17), while a 13-digit timestamp is in milliseconds — the same moment with three extra digits. This converter detects the difference automatically and tells you which one it used.

What date is the timestamp 0?

Exactly Thu, 01 Jan 1970 00:00:00 UTC — the Unix epoch itself. Negative timestamps count backwards from that moment, so -86400 is 31 December 1969 at midnight UTC.

Is this Unix timestamp converter free?

Yes — 100% free, no sign-up. Everything is calculated in your browser; the timestamps and dates you enter are never uploaded, saved or tracked.

More free tools →