Chilla (month) racing festival, is held the next day at the open ground of Tundikhel. Chilla (month) Chillā (Nepal Bhasa: चिल्ला) is the fifth month in the Nepal Era calendar, the national lunar calendar of Nepal. The month coincides with Phalguna (फागुन) in the Hindu lunar calendar and March in the Gregorian calendar. Chillā begins with the new moon and the full moon falls on the 15th of the lunar month. The month is divided into the bright and dark fortnights which are known as Chillā Thwa (चिल्ला थ्व) and Chillā Gā (चिल्ला गा) respectively. The major event that occurs during this
Adoption of the Gregorian calendar old style calendar remains used in religious contexts. Today, the Gregorian calendar is the world's most widely used civil calendar. During and for some time after the change between systems, it has been common to use the terms "Old Style" and "New Style" when giving dates, to indicate which calendar was used to reckon them. The Gregorian calendar was decreed in 1582 by the papal bull "Inter gravissimas" by Pope Gregory XIII, to correct a divergence in the canonical date of the [northern] spring equinox from observed reality (due to an error in the Julian system) that affected the calculation