unix time is the numbers of second since 1 january 1970 UTC also know as POSIX time. It is used widely, not only in Unix-like operating systems, but also in many other computing systems and file formats.This tool can convert Unix timestamp to Readable Date/time and and vice versa.
On September 9, 2001, at exactly 01:46:40 (UTC) the decimal representation of Unix time was equal to 1000000000, which was celebrated as the Unix billennium.
On February 13, 2009, at exactly 23:31:30 (UTC) the decimal representation of Unix time was equal to 1234567890. Parties and other celebrations were held around the world, among various technical subcultures, to celebrate the 1234567890 day.