Date - JavaScript | MDN - MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
WebA JavaScript date is fundamentally specified as the time in milliseconds that has elapsed since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC (equivalent to the UNIX epoch ). This timestamp is timezone-agnostic and uniquely defines an instant in history.
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