* @return string locale
*/
public abstract function locale_win_charset();
+
+ /**
+ * Provided with a day, month, year, hour and minute in the specific
+ * calendar type convert it into the equivalent Unix Time Stamp.
+ *
+ * @param int $year
+ * @param int $month
+ * @param int $day
+ * @param int $hour
+ * @param int $minute
+ * @return int timestamp
+ */
+ public function convert_to_timestamp($year, $month, $day, $hour = 0, $minute = 0) {
+ $gregorianinfo = $this->convert_to_gregorian($year, $month, $day, $hour, $minute);
+ return make_timestamp(
+ $gregorianinfo['year'],
+ $gregorianinfo['month'],
+ $gregorianinfo['day'],
+ $gregorianinfo['hour'],
+ $gregorianinfo['minute'],
+ 0);
+ }
}
