Unix Timestamp Converter
Bidirectional timestamp converter with live clock and auto-detection of seconds vs milliseconds. View detailed breakdowns in UTC, local time, ISO format, and day of week.
Current Unix Timestamp
1771267939Unix Timestamp
Seconds or milliseconds since epoch
Date String (ISO 8601)
ISO format date/time
What is Unix Time?
Unix time (also known as Epoch time or POSIX time) measures time as the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. It is used extensively in programming and operating systems as a simple, timezone-independent way to track time.
Seconds vs Milliseconds
This tool auto-detects whether your timestamp is in seconds (10-digit) or milliseconds (13-digit). JavaScript's Date.now() returns milliseconds, while many server-side systems use seconds. Both formats are shown in the parsed details for easy reference.