timestamp to time in javascript code example

Example 1: javascript timestamp in seconds

const ts = () => Math.floor(new Date().getTime() / 1000);

Example 2: convert date to timestamp javascript

const toTimestamp=(strDate)=>{
   var datum = Date.parse(strDate);
   return datum/1000;
}
console.log(toTimestamp('02/13/2009 23:31:30'));