Answers for "get utc timestamp of date string javascript"

javascript get utc time

const now = new Date()

// UTC Date String
now.toUTCString() // "Sun, 30 May 2021 14:59:15 GMT"

// ISO String
now.toISOString() // "2021-05-30T14:59:15.449Z"

// Unix timestamp
Math.floor(now / 1000) // 1622386878

convert timestamp to utc javascript

function utcformat(d){
    d= new Date(d);
    var tail= 'GMT', D= [d.getUTCFullYear(), d.getUTCMonth()+1, d.getUTCDate()],
    T= [d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds()];
    if(+T[0]> 12){
        T[0]-= 12;
        tail= ' pm '+tail;
    }
    else tail= ' am '+tail;
    var i= 3;
    while(i){
        --i;
        if(D[i]<10) D[i]= '0'+D[i];
        if(T[i]<10) T[i]= '0'+T[i];
    }
    return D.join('/')+' '+T.join(':')+ tail;
}