Unix Timestamp Converter
Translate between epoch seconds, milliseconds, and ISO 8601.
All processing happens locally in your browser
Now
epoch 1786600829iso 2026-08-13T06:00:29.000Z
2026-08-13T06:00:29.000Z
1786600829
A Unix timestamp is the number of seconds — or milliseconds — elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It is timezone-agnostic, making it the standard unit for logging, database fields, and API responses. This tool shows a live now-clock and converts in both directions: paste an integer to get an ISO 8601 date, or paste an ISO 8601 string to get the epoch value. Second vs millisecond precision is detected automatically.