以小时为单位获取时差[重复]

Question

如何获取当前时间与开始日期的小时差？

var diff = new Date("2016-02-26 17:21:29") - new Date();
diff_time = diff / (60 * 60 * 1000);
//alert(diff_time);

if (diff_time < 24) {
    alert("Please select the start date greater than 24 hours");
}

Answer 1

时间格式应该/或空格分隔，而不是-分隔

var diff = new Date($('#start_date').val()) - new Date() ;
diff_time = diff / (60 * 60 * 1000);
alert(diff_time);
return false;

if (diff_time < 24) {
    error = "Please select the start date on";
}