@planjs/utils/es/date/time-left.js

🔧 Common tools collection

import toDate from './to-date';
/**
 * 计算剩余时间
 * @note startTime - endTime 的剩余时间,startTime大于endTime时，均返回0
 * @param startTime
 * @param endTime
 * @category Date
 */

function timeLeft(startTime, endTime) {
  if (!startTime || !endTime) {
    return;
  }

  var startDate = toDate(startTime),
      endDate = toDate(endTime);
  var t = endDate.getTime() - startDate.getTime();
  var d = 0,
      h = 0,
      m = 0,
      s = 0;

  if (t >= 0) {
    d = Math.floor(t / 1000 / 3600 / 24);
    h = Math.floor(t / 1000 / 60 / 60 % 24);
    m = Math.floor(t / 1000 / 60 % 60);
    s = Math.floor(t / 1000 % 60);
  }

  return {
    d: d,
    h: h,
    m: m,
    s: s
  };
}

export default timeLeft;