时区转换工具

// 获取指定时区的当前时间
function getTimeInTimezone(timezone) {
    return new Date().toLocaleString('zh-CN', {
        timeZone: timezone,
        year: 'numeric',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
                                second: '2-digit',
        hour12: false
    });
}

// 时区转换
function convertTimezone(sourceTime, sourceTimezone, targetTimezone) {
    // 创建Date对象
    const date = new Date(sourceTime);
    
    // 转换为目标时区的字符串
    const targetTimeString = date.toLocaleString('en-US', {
        timeZone: targetTimezone,
        year: 'numeric',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
        second: '2-digit',
        hour12: false
    });
    
    return targetTimeString;
}

// 计算时差
function getTimeDifference(timezone1, timezone2) {
    const now = new Date();
    
    const time1 = new Date(now.toLocaleString('en-US', { timeZone: timezone1 }));
    const time2 = new Date(now.toLocaleString('en-US', { timeZone: timezone2 }));
    
    const diffMs = time1 - time2;
    const diffHours = diffMs / (1000 * 60 * 60);
    
    return diffHours;
}

// 使用示例
console.log(getTimeInTimezone('Asia/Shanghai'));
console.log(getTimeInTimezone('America/New_York'));
console.log(getTimeInTimezone('Europe/London'));

console.log('北京-纽约时差:', getTimeDifference('Asia/Shanghai', 'America/New_York'), '小时');

from datetime import datetime
import pytz

# 获取指定时区的当前时间
def get_time_in_timezone(timezone_name):
    timezone = pytz.timezone(timezone_name)
    return datetime.now(timezone)

# 时区转换
def convert_timezone(source_time, source_timezone, target_timezone):
    source_tz = pytz.timezone(source_timezone)
    target_tz = pytz.timezone(target_timezone)
    
    # 确保源时间有时区信息
    if source_time.tzinfo is None:
        source_time = source_tz.localize(source_time)
    
    # 转换时区
    return source_time.astimezone(target_tz)

# 计算时差
def get_time_difference(timezone1, timezone2):
    now = datetime.now(pytz.UTC)
    
    tz1 = pytz.timezone(timezone1)
    tz2 = pytz.timezone(timezone2)
    
    time1 = now.astimezone(tz1)
    time2 = now.astimezone(tz2)
    
    diff = time1 - time2
    return diff.total_seconds() / 3600

# 使用示例
if __name__ == '__main__':
    print("北京时间:", get_time_in_timezone('Asia/Shanghai'))
    print("纽约时间:", get_time_in_timezone('America/New_York'))
    print("伦敦时间:", get_time_in_timezone('Europe/London'))
    
    print("\n北京-纽约时差:", get_time_difference('Asia/Shanghai', 'America/New_York'), '小时')
    
    # 时区转换示例
    source_time = datetime(2024, 1, 1, 12, 0, 0)
    target_time = convert_timezone(source_time, 'Asia/Shanghai', 'America/New_York')
    print(f"\n北京时间 {source_time} 转换为纽约时间: {target_time}")