IPTool IPTool

Fast system administrator tools

If the number is very large (β‰₯ 1e11), it will be treated as milliseconds. Otherwise β€” as seconds.
Pick date and time to get Unix timestamp.

Unix (seconds)
Unix (milliseconds)
ISO 8601 / RFC 3339
Local time
UTC

Unix time is the number of seconds since 1 Jan 1970 00:00:00 UTC. JavaScript Date uses milliseconds.