RTClib.h

// Code by JeeLabs http://news.jeelabs.org/code/
// Released to the public domain! Enjoy!
#ifndef RTCLIB_H_
#define RTCLIB_H_

// Simple general-purpose date/time class (no TZ / DST / leap second handling!)
class DateTime {
public:
	DateTime(uint32_t t = 0);
	DateTime(uint16_t year, uint8_t month, uint8_t day, uint8_t hour = 0, uint8_t min = 0, uint8_t sec = 0);
	DateTime(const char* date, const char* time);
	uint16_t year() const {
		return 2000 + yOff;
	}
	uint8_t month() const {
		return m;
	}
	uint8_t day() const {
		return d;
	}
	uint8_t hour() const {
		return hh;
	}
	uint8_t minute() const {
		return mm;
	}
	uint8_t second() const {
		return ss;
	}
	uint8_t dayOfWk() const;

	// 32-bit times as seconds since 1/1/2000
	long secondstime() const;
	// 32-bit times as seconds since 1/1/1970
	uint32_t unixtime(void) const;

protected:
	uint8_t yOff, m, d, hh, mm, ss;
};

// RTC based on the DS1307 chip connected via I2C and the Wire library
class RTC_DS1307 {
public:

	uint8_t begin(void);
	static void adjust(const DateTime& dt);
	uint8_t isrunning(void);
	static DateTime now();
	bool checkDst();
};

#endif