Unix Timestamp Converter

Instantly convert epoch time to local/UTC dates and generate timestamps from a date.
Local & UTC No uploads
Unix timestamp
seconds
Auto-detects seconds (10 digits) and milliseconds (13 digits).
Readable date
Local time
-
UTC time
-
Date to timestamp
Uses your local timezone for input.
Timestamp output
Seconds
-
Milliseconds
-
Privacy note: conversions happen locally in your browser.

What a Unix timestamp is

A Unix timestamp is the number of seconds (or milliseconds) since 1970-01-01 00:00:00 UTC. It is widely used in logs, APIs, and databases for time storage.

When to use this converter

Use it to inspect API responses, debug logs, or quickly convert scheduling data. It helps you move between human-readable dates and machine-friendly timestamps.

Seconds vs. milliseconds

Some systems use seconds (10 digits) and others use milliseconds (13 digits). This tool detects the format and converts accordingly.

How to convert a Unix timestamp

Paste a timestamp or pick a date to convert instantly.

  1. Enter a Unix timestamp to see the local and UTC date.
  2. Pick a date/time to generate Unix seconds and milliseconds.
  3. Copy the results you need.

FAQ

Does this tool send data to a server?
No. Everything runs locally in your browser.
What timezone is used for the output?
The tool shows both local time and UTC.
How does it detect seconds vs milliseconds?
It treats 13+ digit values as milliseconds and 10-digit as seconds.