The Unix epoch (also known as Unix time, POSIX time, or Unix timestamp) is the number of seconds that have passed since January 1, 1970 (midnight UTC/GMT) (in ISO 8601: 1970-01-01T00:00:00Z). The epoch is technically Unix time 0 (midnight 1/1/1970), although the term ‘epoch’ is often used as a synonym for Unix time.
On January 19, 2038, some devices could store epoch dates as a signed 32-bit integer, which could trigger issues (known as the Year 2038 problem or Y2038). This page’s converter transforms seconds (10-digit), milliseconds (13-digit), and microseconds (16-digit) timestamps to understandable dates.