如何将 1 个 UTC 日添加到 javascript 日期?
How to add 1 UTC day to javascript date?
如何使用 javascript,获取非 UTC 日期,添加 1 个 UTC 日,将时间归零,然后将其转换为 ISO 字符串?
new Date().toISOString()
2017-10-10T16:00:49.915Z
所需的 UTC 日期字符串
2017-10-11T00:00:00.000Z
下面我以毫秒为单位获取日期,以毫秒为单位添加 1 全天。
然后我以毫秒为单位除以一天,截断,然后再以毫秒为单位除以一天。
var d = new Date('2017-10-10T16:00:49.915Z');
function nextDayUTC(d) {
var aDay = 1440 * 60 * 1000;
var d2 = new Date( Math.trunc((d.getTime() + aDay)/aDay)*aDay);
return d2;
}
function nextDayLocal(d) {
//basically set to start of the day
//add 36 hrs, this pretty much ensures next day
//add then reset the hours back to 0
var hr36 = 36 * 60 * 60 * 1000;
var d2 = new Date(d);
d2.setHours(0,0,0,0);
d2.setTime(d2.getTime() + hr36);
d2.setHours(0,0,0,0);
return d2;
}
console.log(d)
console.log("Next Day UTC");
console.log(nextDayUTC(d).toISOString());
console.log("Next Day Local");
console.log(nextDayLocal(d).toString());
如何使用 javascript,获取非 UTC 日期,添加 1 个 UTC 日,将时间归零,然后将其转换为 ISO 字符串?
new Date().toISOString()
2017-10-10T16:00:49.915Z
所需的 UTC 日期字符串
2017-10-11T00:00:00.000Z
下面我以毫秒为单位获取日期,以毫秒为单位添加 1 全天。 然后我以毫秒为单位除以一天,截断,然后再以毫秒为单位除以一天。
var d = new Date('2017-10-10T16:00:49.915Z');
function nextDayUTC(d) {
var aDay = 1440 * 60 * 1000;
var d2 = new Date( Math.trunc((d.getTime() + aDay)/aDay)*aDay);
return d2;
}
function nextDayLocal(d) {
//basically set to start of the day
//add 36 hrs, this pretty much ensures next day
//add then reset the hours back to 0
var hr36 = 36 * 60 * 60 * 1000;
var d2 = new Date(d);
d2.setHours(0,0,0,0);
d2.setTime(d2.getTime() + hr36);
d2.setHours(0,0,0,0);
return d2;
}
console.log(d)
console.log("Next Day UTC");
console.log(nextDayUTC(d).toISOString());
console.log("Next Day Local");
console.log(nextDayLocal(d).toString());