Unix timestamp, Epoch time or POSIX time representing a specific point in time as a single number, which is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. Unix timestamps are useful for computer programs because they provide a standardized way to represent and compare dates and times, regardless of the time zone or location of the computer or user.
The current Unix timestamp is the number of seconds since January 1, 1970, 00:00:00 UTC and is constantly increasing, with each second that passes adding one to the timestamp value.
Current Timestamp
timestamp
Current Date
date