获取具有特定时间的Date()对象 [英] Get Date() object with specific time

问题描述

我想获得一周的开始日期.我能够得到日期，它只是返回的日期具有到当前系统时间的时间.例如，如果现在是19:20，则我将周开始日期设为日期{2012年3月26日星期一19:20:16 GMT + 0530(IST)}

I want to get week Start Date of a week. I am able to get the date, its just that the date returned has time wrt to the current system time. For example, if its 19:20 hours right now, I am getting the week start date as Date {Mon Mar 26 2012 19:20:16 GMT+0530 (IST)}

为了进行准确的计算，我需要将时间设为格林尼治标准时间00:00:00.

For accurate calculations, I need the time to be 00:00:00 GMT.

我该如何实现?

我当前的代码如下:

var tDate = new Date();
var wDate = new Date();

this.chosenDayIndex = this.currentDayIndex = tDate.getDay();

if (this.currentDate == '') {

    this.currentDate = new Date();  
    var today = formatDate(tDate);
    var diff = tDate.getDate() - this.currentDayIndex + (this.currentDayIndex == 0 ? -6:1);

    this.weekStartDate = this.weekMonDate = new Date(wDate.setDate(diff));
    this.weekEndDate = new Date(this.weekStartDate.getFullYear(),this.weekStartDate.getMonth(), this.weekStartDate.getDate()+6);
    this.weekMonday = formatDate(this.weekMonDate);             

}

this.weekStartDate当前正在使用当前时间戳发出错误的开始日期.

this.weekStartDate is currently handing out the false start date with the current timestamp.

推荐答案

您可以使用以下方法将日期设置为一周的开始:

You can set the date to the start of the week with this:

var d = new Date();
d.setDate(d.getDate() - d.getDay());

然后使用 .setHours(0)， .setMinutes(0)等来清除时间.

Then use .setHours(0), .setMinutes(0), etc. to clear out the time.

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