The first "Year of the Loong, Month of the Loong, Day of the Loong, and Hour of the Loong" of this year occurs from 7:00 to 9:00 on April 10th. This year, there will be a total of three occurrences and the other two times are from 7:00 to 9:00 on April 22nd and May 4th. This is an interesting phenomenon marked by the traditional Chinese zodiac and the sexagenary cycle, also known as the stems-and-branches or ganzhi (Chinese: 干支), which is used to denote the year, month, day, and hour.