/**
* @brief convert gmt to unix time
* @param [in] year year
* @param [in] month month
* @param [in] day   day
* @param [in] hour  hour
* @param [in] sec   second
* @return unixtime
*/
uint64_t convertTokyoTimetoUnixTime(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t min, uint8_t sec) {
	//static const uint16_t monthday[] = { 0,31,61,92,122,153,184,214,245,275,306,337,365 };
	uint16_t onehundredyear;
	uint64_t	result = 0;
	uint32_t	resultDay = 0;

	static const uint16_t monthday[] = { 0,31,61,92,122,153,184,214,245,275,306,337,365 };
	if (month < 3) {
		month += 12;
		--year;
	}
	month -= 3;	//	0:March
	resultDay = year * 365;
	onehundredyear = year / 100;
	resultDay += (year >> 2) - (onehundredyear)+(onehundredyear >> 2);
	resultDay += monthday[month];
	resultDay += day - 1;
	resultDay -= EPOCH_DAY;
	result = (uint64_t)resultDay * (24 * 60 * 60);
	result += hour * (60 * 60);
	result += min * 60;
	result += sec;
	result -= GMT_TOKYO;
	return result;
}