它很容易工作:

var endTime = $("#ExamEndTime").val();
var startTime = $("#ExamStartTime").val();

//create date format          
var timeStart = new Date("01/01/2007 " + startTime);
var timeEnd = new Date("01/01/2007 " + endTime);
                
var  msInMinute = 60 * 1000;

var difference =  Math.round(Math.abs(timeEnd - timeStart) / msInMinute);

$("#txtCalculate").val(difference);

你可以签出这段代码:

var today = new Date（）; var Christmas = new Date（today.getFullYear（） + “-12-25”）; var diffMs = （圣诞节 - 今天）;从现在到圣诞节之间的毫秒数 var diffDays = Math.floor（diffMs / 86400000）;日 var diffHrs = Math.floor（（diffMs % 86400000） / 3600000）;小时 var diffMins = Math.round（（（（diffMs x86400000） % 3600000） / 60000）;纪要 console.log（diffDays + “ days， ” + diffHrs + “ hours， ” + diffMins + “ minutes till Christmas =）”）;

或者var diffMins = Math.floor((…如果不想舍入分钟，则丢弃秒。

var startTime = new Date('2012/10/09 12:00'); 
var endTime = new Date('2013/10/09 12:00');
var difference = endTime.getTime() - startTime.getTime(); // This will give difference in milliseconds
var resultInMinutes = Math.round(difference / 60000);

这是可行的

duration = moment.duration(moment(end_time).diff(moment(start_time)))

一个简单的函数来执行这个计算:

function getMinutesBetweenDates(startDate, endDate) {
    var diff = endDate.getTime() - startDate.getTime();
    return (diff / 60000);
}

您可以进行如下操作:

获取日期的差异(以毫秒为单位) 将毫秒转换为分钟i-e ms/1000/60

代码:

let dateOne = new Date("2020-07-10");
let dateTwo = new Date("2020-07-11");

let msDifference =  dateTwo - dateOne;
let minutes = Math.floor(msDifference/1000/60);
console.log("Minutes between two dates =",minutes);