function getCurDate()
{
today= new Date();
year= today.getYear() + 1900;
month= today.getMonth() + 1;
if (month<10){
month='0'+month;
}
day= today.getDate();
if (day<10){
day='0'+day;
}
hours= today.getHours();
if(hours<10){
hours='0'+hours;
}
minutes = today.getMinutes();
if(minutes<10) minutes = '0'+minutes;
seconds = today.getSeconds();
if(seconds<10) seconds='0'+seconds
now = year + '-' + month + '-' + day + ' ' + hours + ":" + minutes + ":" + seconds;
return now;
}
new Date().getTime()的值精确到毫秒值
Date date1 = new Date();
Date date2 = new Date();
var daydiff = (date1.getTime()-date2.getTime())/(24*60*60*1000);
Date date1 = new Date();
Date date2 = new Date();
var hourdiff = (date1.getTime()-date2.getTime())/(60*60*1000);