如果你想從今天午夜到明天午夜，不使用任何 3rd 方庫。

你可以這樣做->

const from = new Date();

const to = new Date(from);

function clearTime(t) {

  t.setMinutes(0);

  t.setSeconds(0);

  t.setMilliseconds(0);

}

from.setHours(0); clearTime(from);

to.setHours(24); clearTime(to);

console.log(from);

console.log(to);

如果你想從時間戳創建日期，你可以使用 new Date(timestamp)

let timestamp = 1584532480757;

let date = new Date(timestamp );

document.write(date);

您可以使用以下內容。如果您需要對下面的代碼片段進行解釋，請告訴我。

var now = new Date();

var [year, month, day] = [now.getFullYear(), now.getMonth(), now.getDate()];

var todayFrom = new Date(year, month, day);

var todayTo = new Date(year, month, day+1);

todayTo = new Date(todayTo.getTime()-1);

console.log(todayFrom);

console.log(todayTo);

console.log(todayFrom.getTime());

console.log(todayTo.getTime());