如何在python Windows操作系统中获取RTC时间

import ctypes
import datetime

# 定义Windows API函数和数据结构
class SYSTEMTIME(ctypes.Structure):
    _fields_ = [
        ('wYear', ctypes.c_uint16),
        ('wMonth', ctypes.c_uint16),
        ('wDayOfWeek', ctypes.c_uint16),
        ('wDay', ctypes.c_uint16),
        ('wHour', ctypes.c_uint16),
        ('wMinute', ctypes.c_uint16),
        ('wSecond', ctypes.c_uint16),
        ('wMilliseconds', ctypes.c_uint16)
    ]

kernel32 = ctypes.windll.kernel32
GetSystemTime = kernel32.GetSystemTime
GetSystemTime.argtypes = [ctypes.POINTER(SYSTEMTIME)]

# 获取RTC时间
def get_rtc_time():
    system_time = SYSTEMTIME()
    GetSystemTime(ctypes.byref(system_time))
    rtc_time = datetime.datetime(
        system_time.wYear,
        system_time.wMonth,
        system_time.wDay,
        system_time.wHour,
        system_time.wMinute,
        system_time.wSecond
    )
    return rtc_time

# 调用函数获取RTC时间
rtc_time = get_rtc_time()
print("RTC时间：", rtc_time)