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js时间戳与日期格式的相互转换
李子的博客
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下面总结一下js中时间戳与日期格式的相互转换:

1. 将时间戳转换成日期格式:


   

function timestampToTime(timestamp) {

        var date = new Date(timestamp * 1000);//时间戳为10位需*1000,时间戳为13位的话不需乘1000

        var Y = date.getFullYear() + '-';

        var M = (date.getMonth()+1 < 10 ? '0'+(date.getMonth()+1) : date.getMonth()+1) + '-';

        var D = date.getDate() + ' ';

        var h = date.getHours() + ':';

        var m = date.getMinutes() + ':';

        var s = date.getSeconds();

        return Y+M+D+h+m+s;

    }

    timestampToTime(1403058804);

    console.log(timestampToTime(1403058804));//2014-06-18 10:33:24

   

  注意:如果是Unix时间戳记得乘以1000。比如:PHP函数time()获得的时间戳就要乘以1000。

2. 将日期格式转换成时间戳:

   

var date = new Date('2014-04-23 18:55:49:123');

    // 有三种方式获取

    var time1 = date.getTime();

    var time2 = date.valueOf();

    var time3 = Date.parse(date);

    console.log(time1);//1398250549123

    console.log(time2);//1398250549123

    console.log(time3);//1398250549000

   

  以上三种获取方式的区别:

  第一、第二种:会精确到毫秒

  第三种:只能精确到秒,毫秒用000替代

  以上三个输出结果可观察其区别

  注意:获取到的时间戳除以1000就可获得Unix时间戳,就可传值给后台得到。


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