Linux通过python脚本设置系统时间（毫秒）

# -*- coding: utf-8 -*-
import ctypes
import time
import datetime

CLOCK_REALTIME = 0

class timespec(ctypes.Structure):
    _fields_ = [
        ('tv_sec', ctypes.c_long),   # 秒
        ('tv_nsec', ctypes.c_long),  # 纳秒（1 ms = 1,000,000 ns）
    ]

# 加载 libc
librt = ctypes.CDLL('librt.so.1', use_errno=True)

clock_settime = librt.clock_settime
clock_settime.argtypes = [ctypes.c_int, ctypes.POINTER(timespec)]

# 获取当前时间并加 1100 毫秒
now = datetime.datetime.now() + datetime.timedelta(milliseconds=1100)

# 构造 timespec 结构体
ts = timespec()
ts.tv_sec = int(time.mktime(now.timetuple()))
ts.tv_nsec = (now.microsecond * 1000)  # 微秒转纳秒

# 调用 clock_settime 设置时间
if clock_settime(CLOCK_REALTIME, ctypes.byref(ts)) != 0:
    import ctypes.util
    errno = ctypes.get_errno()
    print(u"❌ 设置系统时间失败，错误代码：%d，原因：%s" % (errno, os.strerror(errno)))
else:
    print(u"✅ 系统时间已成功设置为（毫秒级）：%s.%03d" % (now.strftime("%Y-%m-%d %H:%M:%S"), now.microsecond // 1000))