将DateTime序列化为时间而不是毫秒和gmt

function serializeDateTimeToMilliseconds(dateTime: DateTime): number {
    return ToMilliseconds(dateTime);
}

function ToMilliseconds(dateTime: DateTime): number {
    const date: Date = new Date(dateTime.year, dateTime.month, dateTime.day, dateTime.hour, dateTime.minute, dateTime.second);
    date.setMilliseconds(dateTime.millisecond);
    return date.getTime();
}

// 使用示例:
const dateTime = { year: 2022, month: 10, day: 1, hour: 12, minute: 0, second: 0, millisecond: 0 };
const serializedDateTime = serializeDateTimeToMilliseconds(dateTime);
console.log(serializedDateTime);

function serializeDateTimeToGMT(dateTime: DateTime): string {
    const dtArr: string[] = dateTime.toISODate().split('T');
    if (dtArr.length === 3) {
        return `${dtArr[0]}T${dtArr[1]+'}'+'{datetime}'T${dtArr[2]}`;
    } else {
        return `${dtArr[0]}T${dtArr[1]+'}'+'{datetime}'`;
    }
}

function getDateTime(UTCString: string): DateTime {
  const isUtc: boolean = !UTCString.split(' ')[1].endsWith('Z');
  const localOffsetGMT8: number= 8*60*60*1000; // UTC-8
  const localOffsetLocal: number = isUtc ? 0 : -localOffsetGMT8;
  let parts = UTCString.split(' ');
  // If the timezone is always positive, then always assume local time (GMT+8)
  parts[0] = parts[0].substring(0, parts[0].length -4); // Remove the timezone offset
  parts[0] = 'yyyy-MM-dd HH:mm:ss'; // Use the local date format (to ensure equal comparison)
  parts[1] = UTCString.split(' ')[1];
  return DateTime.fromISODate(parts[0].concat(parts[1].split('T').join('T')));
}

// 使用示例:
const dateTime = { year: 2022, month: 10, day: 1, hour: 12, minute: 0, second: 0, timezone: 'America/New_York' };
const serializedDateTime = serializeDateTimeToGMT(dateTime);
console.log(serializedDateTime);

// 示例: 将 dateTime 解码为 DateTime
const parsedDateTime = getDateTime(serializedDateTime.trim());
console.log(parsedDateTime);

// 将 DateTime 序列化为时间字符串：
function serializeDateTimeToTime(dateTime: DateTime): string {
    const hours = dateTime.getHoursOrDefault(0);
    const minutes = dateTime.getMinutesOrDefault(0);
    const seconds = dateTime.getSecondsOrDefault(0);
    const hasMinutesOrSeconds = dateTime.minutes || dateTime.seconds;
    if (hasMinutesOrSeconds) {
        return `${dateTime.hours}:${dateTime.minutes}:${dateTime.seconds}`;
    } else {
        return `${dateTime.hours}:0:0`;
    }
}

// 使用示例
const dateTime = { year: 2022, month: 10, day: 1, hour: 12, minute: 30, second: 0, timezone: 'America/Los_Angeles' };
const serializedDateTime = serializeDateTimeToTime(dateTime);
console.log(serializedDateTime);

// 将 DateTime 序列化为毫秒数和 GMT：
function serializeDateTimeMSGTGMT(dateTime: DateTime): string {
    return `${dateTime.milliseconds}-1970-01-01T00:00:00.0${dateTime.timezone}${dateTime.timezone}${dateTime.timezone}`;
}

// 使用示例：

const serializedDateTime = serializeDateTimeMSGTGMT(dateTime);
console.log(serializedDateTime);