Assamese calendar
The Assamese Calendar (Assamese: ভাস্কৰাব্দ, lit. 'Bhāskarābda') is a solar calendar, followed in the Indian state of Assam. The New Year in the Assamese calendar is known as Bohag Bihu. The calendar is counted from the date of the  ascension of Kumar Bhashkar Barman to the throne of Kamarupa. It differs 593 years with Gregorian calendar.