getUnixTime
import { getUnixTime } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// Get the timestamp of 29 February 2012 11:45:05 CET:
const result = getUnixTime(new Date(2012, 1, 29, 11, 45, 5))
//=> 1330512305
function getUnixTime<DateType extends Date>(date: DateType | number | string): number;