js 计算两个日期的时差

function calculateTimeDifference(date1, date2) {
    // 获取时间戳（毫秒）
    const timestamp1 = date1.getTime();
    const timestamp2 = date2.getTime();

    // 计算时间戳差值（毫秒）
    const differenceInMs = Math.abs(timestamp2 - timestamp1);

    // 转换为秒
    const differenceInSeconds = differenceInMs / 1000;

    // 转换为分钟
    const differenceInMinutes = differenceInSeconds / 60;

    // 转换为小时
    const differenceInHours = differenceInMinutes / 60;

    // 转换为天
    const differenceInDays = differenceInHours / 24;

    return {
        ms: differenceInMs,
        seconds: differenceInSeconds,
        minutes: differenceInMinutes,
        hours: differenceInHours,
        days: differenceInDays
    };
}

// 示例用法
const date1 = new Date('2023-10-01T12:00:00Z');
const date2 = new Date('2023-10-05T12:00:00Z');

const timeDifference = calculateTimeDifference(date1, date2);
console.log(timeDifference);
// 输出: { ms: 345600000, seconds: 345600, minutes: 5760, hours: 96, days: 4 }