[3] In the revision of the Bengali calendar used in Bangladesh since October 2019, the month has 29 days in common years or 30 in leap years of the Gregorian calendar.

[5] The month has 29 or 30 days, based on the true movements of the Sun, in the old non-reformed Bengali calendar, still used in West Bengal,[1] and in the Nepali calendar.

[6] Falgun was named for the nakshatra (lunar mansion) Uttara phalguni, in the vicinity of which the full moon appears at that time of the year.

[7] It marks the arrival of spring, the sixth and final season in Bangladesh, West Bengal, Assam, and Nepal.

[1] Falgun falls between mid-February and mid-March on the Gregorian calendar.