JS calculate date time difference

This time I will bring you JS to calculate the date and time difference. What are the precautions for JS to calculate the date and time difference? The following is a practical case, let's take a look.

The code for js to determine date and time is as follows:

alert(GetDateDiff("2018-02-27 19:20:22","2018-02-27 09:20:22","hour"));
function GetDateDiff(startTime, endTime, diffType) {
  //将xxxx-xx-xx的时间格式，转换为 xxxx/xx/xx的格式 
  startTime = startTime.replace(/\-/g, "/");
  endTime = endTime.replace(/\-/g, "/");
  //将计算间隔类性字符转换为小写
  diffType = diffType.toLowerCase();
  var sTime =new Date(startTime); //开始时间
  var eTime =new Date(endTime); //结束时间
  //作为除数的数字
  var timeType =1;
  switch (diffType) {
    case"second":
      timeType =1000;
    break;
    case"minute":
      timeType =1000*60;
    break;
    case"hour":
      timeType =1000*3600;
    break;
    case"day":
      timeType =1000*3600*24;
    break;
    default:
    break;
  }
  return parseInt((eTime.getTime() - sTime.getTime()) / parseInt(timeType));
}

PS: Let’s look at js to find the time difference

var date1=new Date(); //开始时间
alert("aa");
var date2=new Date();  //结束时间
var date3=date2.getTime()-date1.getTime() //时间差的毫秒数
//计算出相差天数
var days=Math.floor(date3/(24*3600*1000))
//计算出小时数
var leave1=date3%(24*3600*1000)  //计算天数后剩余的毫秒数
var hours=Math.floor(leave1/(3600*1000))
//计算相差分钟数
var leave2=leave1%(3600*1000)    //计算小时数后剩余的毫秒数
var minutes=Math.floor(leave2/(60*1000))
//计算相差秒数
var leave3=leave2%(60*1000)   //计算分钟数后剩余的毫秒数
var seconds=Math.round(leave3/1000)
alert(" 相差 "+days+"天 "+hours+"小时 "+minutes+" 分钟"+seconds+" 秒")

# I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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