Epoch
Seconds since 1 January 1970 UTC
Unix time counts SI seconds from that midnight. It ignores leap seconds in the usual POSIX sense: a leap second is not an extra integer on most computers. This calculator uses the device clock.
Convert a UTC date and time to seconds since 1 January 1970, and back.
Epoch
Unix time counts SI seconds from that midnight. It ignores leap seconds in the usual POSIX sense: a leap second is not an extra integer on most computers. This calculator uses the device clock.