将JavaScript中的日期时间字符串转换为UTC日期

Question

如何将"2011-09-30T00:00:00"日期时间字符串转换为JavaScript中的UTC日期?

我尝试了new Date("2011-09-30T00:00:00")，但它转换为"2011-09-29T23:00:00.000Z"。

Answer 1

Simple:

function createDateUTC(dateUTC) {
return new Date(dateUTC + "Z");
}
var dateUTC = createDateUTC("2011-09-30T00:00:00");
console.log(dateUTC);

Answer 2

function createDateAsUTC(dateYmd) {
var dateYmdSplited = dateYmd.split('-');
var y = Number(dateYmdSplited[0]);
var m = Number(dateYmdSplited[1]) - 1;
var d = Number(dateYmdSplited[2])
return new Date(Date.UTC(y, m, d, 0, 0, 0))
}
var fecha = "2021-09-01";
var d = createDateAsUTC(fecha);