minhnh

<?php
//Convert to date
$datestr="2017-12-31 23:59:59";// New Year Moment
$date=strtotime($datestr);//Converted to a PHP date (a second count)

//Calculate difference
$diff=$date-time();//time returns current time in seconds
$days=floor($diff/(60*60*24));//seconds/minute*minutes/hour*hours/day)
//Report
echo "$days days remain until NewYear";
?>

<script>
today=new Date();
var cmas=new Date(today.getFullYear(), 12, 31);
var one_day=1000*60*60*24;
console.log(Math.ceil((cmas.getTime()-today.getTime())/(one_day))+ " days left until NewYear!");
</script>