Unix and JavaScript timestamps

Unix time is the number of seconds elapsed since midnight UTC on January 1, 1970. For example, Unix time was 17&zwj;56684800 on September 1, 2025 at midnight UTC. The counter is independent of the time zone, holding the same value at the same moment in different timezones. It is widely used in C and C++ programming languages, databases (MySQL, PostgreSQL, and SQLite), and file systems (ext3, HFS+,…