Unix Timestamp Converter
Convert Unix epoch timestamps to UTC, ISO 8601, and local dates, or convert human dates back to Unix epoch seconds.
Methodology & standardsRuns on your device
Inputs
Results update liveCurrent Unix Epoch Timestamp
1789183390
Sat, 12 Sep 2026 03:23:10 GMT
Convert Epoch Timestamp to Human Date
- UTC Time
- Sat, 12 Sep 2026 03:23:10 GMT
- Local Time
- 9/12/2026, 4:23:10 AM
- ISO 8601
- 2026-09-12T03:23:10.000Z
Convert Human Date & Time to Epoch
- Unix Seconds
- 1789179780
- Unix Milliseconds
- 1789179780000
FAQ
Frequently asked questions
How the calculation works and where its limits are.
What is a Unix Timestamp?
A Unix timestamp (also known as Epoch time or POSIX time) is the number of seconds that have elapsed since midnight UTC on January 1, 1970 (1970-01-01T00:00:00Z), minus leap seconds.
What is the Year 2038 problem?
Systems storing Unix timestamps as 32-bit signed integers will overflow on January 19, 2038 at 03:14:07 UTC. Modern 64-bit systems handle timestamps safely for billions of years.
How do I convert between seconds and milliseconds?
Multiply Unix seconds by 1,000 to get milliseconds (used in JavaScript `Date.now()`), or divide milliseconds by 1,000 to get standard Unix seconds.