(原创)GM时间跟本地时间的互相转换

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代码直接上了，当gm时间转本地时间时，在windows下面没有timegm函数，但是可以通过mktime函数减去timezone变量(timezone是C runtime libary的全局变量)来获取

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bool LocalTimeToUTC(MY_TIME_T *pTime)
{
	struct tm newtime;
	newtime.tm_year = pTime->u16Year  - 1900;
	newtime.tm_mon = pTime->u8Month - 1;
	newtime.tm_mday = pTime->u8Day;
	newtime.tm_hour = pTime->u8Hour;
	newtime.tm_min = pTime->u8Minute;
	newtime.tm_sec = pTime->u8Second;
	newtime.tm_wday = 0;
	newtime.tm_yday =0;
	newtime.tm_isdst = 0;

	time_t time = mktime(&newtime);
	struct tm *pnewtime;
	pnewtime = gmtime(&time);

	if(pnewtime != NULL)
	{
		pTime->u16Year = pnewtime->tm_year + 1900;
		pTime->u8Month = pnewtime->tm_mon + 1;
		pTime->u8Day = pnewtime->tm_mday;
		pTime->u8Hour = pnewtime->tm_hour;
		pTime->u8Minute = pnewtime->tm_min;
		pTime->u8Second = pnewtime->tm_sec;
	}
	return true;
}

bool UTCTimeToLocal(MY_TIME_T *pTime)
{
	struct tm newtime;
	newtime.tm_year = pTime->u16Year - 1900;
	newtime.tm_mon = pTime->u8Month - 1;
	newtime.tm_mday = pTime->u8Day;
	newtime.tm_hour = pTime->u8Hour;
	newtime.tm_min = pTime->u8Minute;
	newtime.tm_sec = pTime->u8Second;
	newtime.tm_wday = 0;
	newtime.tm_yday = 0;
	newtime.tm_isdst = 0;

	time_t time = mktime(&newtime) - timezone;
	struct tm *pnewtime;
	pnewtime = localtime(&time);
	if (pnewtime != NULL)
	{
		pTime->u16Year = pnewtime->tm_year + 1900;
		pTime->u8Month = pnewtime->tm_mon + 1;
		pTime->u8Day = pnewtime->tm_mday;
		pTime->u8Hour = pnewtime->tm_hour;
		pTime->u8Minute = pnewtime->tm_min;
		pTime->u8Second = pnewtime->tm_sec;
	}
	return true;
}

多谢打赏
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