确定当天的开始和结束时间(UTC) (JAVASCRIPT)

Question

我正在尝试确定UTC中当前一天的开始和结束时间。

目前这是我的解决方案。'

var starttime = date.getTime() -(date.getHours() * 3600000 ); //subtracting a hours to go back to start time of the day.
var endtime = low + 86400000; //adding 24 hours to the start time 
   `

任何帮助都是感激的!谢谢你

Answer 1

谢谢大家。这对我来说是有效的!!:)

 var d = new Date();
 var year = d.getUTCFullYear();
 var month = d.getUTCMonth();
 var day = d.getUTCDate();
 var startHour =Date.UTC(year,month,day,0,0,0,0);
 var endHour = startHour + 86400000;