function subtractSecondsFromDate(Seconds : number, date = new Date()) {
date.setSeconds(date.getSeconds() - Seconds);
return date;
}
const date = new Date('2022-03-18T06:56:31');
console.log(subtractSecondsFromDate(20, date).toString());
/*
run:
"Fri Mar 18 2022 06:56:11 GMT+0200 (Israel Standard Time)"
*/