Question

我需要两个时间戳的差异，以秒为单位。但是当计算它错误地给出了。如何根据两个时间戳的差异计算秒数？提前谢谢。

下面，

First timestamp = 20180104113612
Second timestamp = 20180104113954
Difference = First timestamp - Second timestamp

结果为342.但实际上它应该是222.所以请任何人帮助找到差异的秒数？

Answer 1

试试这个

let startDate = new Date();
let endDate   = new Date();
let differenceInSecond = (endDate - startDate) / 1000; //since it's originally in milliseconds

Answer 2

您需要解析日期中的年，月，日，小时，分钟和秒，然后创建一个date对象，然后减去两个日期以获得差异。

＆＃13;

var firstTimestamp = 20180104113612,
    secondTimestamp = 20180104113954,
    
    getDate = (time) => {
      time = time.toString();
      var year = time.substring(0,4),
          month = time.substring(4,6),
          day = time.substring(6,8),
          hour = time.substring(8,10),
          minutes = time.substring(10,12),
          seconds = time.substring(12,14);
          return new Date(year, month, day, hour, minutes, seconds);
    },
    
    getTimeDifference = (firstTime, secondTime) => {
      return Math.floor((getDate(secondTime) - getDate(firstTime))/1000);
    };
    
console.log(getTimeDifference(firstTimestamp, secondTimestamp));

＆＃13;

Answer 3

首先，您必须以适当的格式格式化您的日期。＆＃34; 2018-01-04T11：36：12＆＃34 ;;

格式化你可以使用像这样的函数

function getFormat(dateString) {
    var txt = dateString.slice(0, 4) 
               + "-" 
               + dateString.slice(4, 6) 
               + "-" 
               +dateString.slice(6,8)
               +"T"
               +dateString.slice(8,10)
               +":"
               +dateString.slice(10,12)
               +":"
               +dateString.slice(12,14);
    return txt;
}

然后将其转换为javascript Date对象。

const First_timestamp = 20180104113612;
const Second_timestamp = 20180104113954;
const FirstDate = new Date(getFormat(First_timestamp.toString()));
const SecondDate = new Date(getFormat(Second_timestamp.toString()));
const TimeDiffInSeconds = (SecondDate.getTime() - FirstDate.getTime()) / 1000;

时间戳差异，以秒为单位

3 个答案: