It is approximately 56 years and 8½ months ahead of the Gregorian calendar (English Calendar) which is an ancient calendar used for both civic and religious purposes in Nepal. The year begins in the month Baishakh (Around 14 April) however the lengths of Nepali months don’t seem to be predetermined and changes from year to year, varying from 29 days to 32 days. Besides, Nepal and India, this calendar is additionally used in alternative countries like Bangladesh, Sri Lanka, Thailand, Malaysia, and Indonesia.
It started on 20 October 879 AD and it had been the national calendar of Nepal in Malla and early shah era. However, it was replaced as a national calendar by Bikram Sambat in the early 20th century. Today, Nepal Sambat calendar is still used for the ceremonial purpose to determine the dates to religious festivals along with commemorating birthday and death anniversaries.