var deadline = "May 21 2020 7:59:01 GMT+0530"//document.getElementById("dline").value; function time_remaining(endtime){ var t = Date.parse(endtime) - Date.parse(new Date()); var seconds = Math.floor( (t/1000) % 60 ); var minutes = Math.floor( (t/1000/60) % 60 ); var hours = Math.floor( (t/(1000*60*60)) % 24 ); var days = Math.floor( t/(1000*60*60*24) ); return {'total':t, 'days':days, 'hours':hours, 'minutes':minutes, 'seconds':seconds}; } function run_clock(timer,endtime){ var clock = document.getElementById(timer); // get spans & div where our clock numbers are held var days_span = clock.querySelector('.days'); var tdays = clock.querySelector('.tday'); var thrs = clock.querySelector('.thr'); var hours_span = clock.querySelector('.hours'); var minutes_span = clock.querySelector('.minutes'); var seconds_span = clock.querySelector('.seconds'); var days_txt = days_span.querySelector('.smalltext') function update_clock(){ var t = time_remaining(endtime); // update the numbers in each part of the clock if(t.days>=1){ days_span.innerHTML = t.days; } else{ tdays.style.display='none'; hours_span.style.color='#ffff00'; minutes_span.style.color='#ffff00'; seconds_span.style.color='#ffff00'; } hours_span.innerHTML = ('0' + t.hours).slice(-2); minutes_span.innerHTML = ('0' + t.minutes).slice(-2); seconds_span.innerHTML = ('0' + t.seconds).slice(-2); /* Useless Codes I guess if(t.days<=0){ tdays.style.display='none'; hours_span.style.color='#ffff00'; minutes_span.style.color='#ffff00'; seconds_span.style.color='#ffff00'; } if(t.hours<=0){ thrs.style.display='yes'; }*/ if(t.hours<=4 && t.days<=0){ clock.style.cssText='animation: waggle 4s 1s 3 forwards ease-in-out;'; hours_span.style.color='#ff8282'; minutes_span.style.color='#ff8282'; seconds_span.style.color='#ff8282'; } if(t.total<=0){ clearInterval(timeinterval); clock.innerHTML = "OOPS!
This Deal is Expired."; clock.style.color='#ff0000'} } update_clock(); var timeinterval = setInterval(update_clock,1000); } run_clock('timer',deadline);

Deadline Timer Clock [! console errors]