Free Tool
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds. 100% client-side.
Current Time
Unix (seconds)
1773693842Milliseconds
1773693842344ISO 8601
2026-03-16T20:44:02.344ZTimestamp → Date
Date → Timestamp
What Is a Unix Timestamp?
A Unix timestamp (also called Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC. It's the standard way computers represent time internally and is used extensively in APIs, databases, and logging systems.
Common Uses
- • APIs: Most REST APIs use Unix timestamps for dates
- • Databases: PostgreSQL, MySQL store timestamps as integers
- • Logs: Server logs often use Unix time for precision
- • JWT tokens: Expiration (exp) claims use Unix timestamps