Data
Timestamp Converter
Translate Unix timestamps to UTC and local time, or generate timestamps from a date. Copy results for logs, APIs, and database debugging.
- UTC
- 2024-04-01T00:00:00.000Z
- Local
- Mon Apr 01 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Unix seconds
- 1711929600
- Unix milliseconds
- 1711929600000
How to use it
- Paste a Unix timestamp in seconds or milliseconds.
- Or pick a date and time and convert to Unix.
- Compare UTC and your local timezone.
- Copy the format you need for an API or SQL query.
Example
1711929600 is 2024-04-01 00:00:00 UTC. JWT exp values are usually seconds; JavaScript Date.now() is milliseconds — this is a frequent integration bug.
Privacy
Date math runs in the browser. No timestamps are logged by this tool.
FAQ
Seconds or milliseconds?
Values with 13 or more digits are treated as milliseconds. 10-digit values are treated as seconds. You can override the unit manually.
Which timezone is local?
Your browser timezone. Servers often store UTC. Compare both before deciding an API is 'wrong'.
Does this handle leap seconds?
Unix time ignores leap seconds, matching POSIX and most databases. Use this tool for ordinary application timestamps, not scientific timekeeping.
Next step
Need this wired into a real system?
Estimators and converters help you think. Delivery still needs contracts, environments, and an owner.