Bengali Calendar (বাংলা ক্যালেন্ডার ১৪৩০) is also known as the Bangla Calendar or Bong Calendar. The current Bengali Year is Bengali calendar 1430 BS or Bengali Sambat. Bengali Calendar is based on Solar Calendar. There are two types of Bengali Calendar. One used as an Offical Calendar in Bangladesh and another used in Indian states of West bengal, Tripura and Assam. The New Year of Bangladesh is called Poyla Boishakh. Poyla means first. In Bangla Calendar the new year starts from the middle of april (approximately 15th of the april).

The Bengali Calendar or Bangla Calendar (বঙ্গাব্দ Bônggabdô or Banggabda) is a solar calendar used in the region of Bengal. A revised version of the calendar is the national and official calendar in Bangladesh and an earlier version of the calendar is followed in the Indian states of West Bengal, Tripura and Assam. The New Year in the Bengali calendar is known as Poyla Boishakh. The Bengali era is called Bengali Sambat (BS) or the Bengali year (বাংলা সন Bangla Sôn, বাংলা সাল Bangla sal, or Bangabda) has a zero year that starts in 593/594 CE. It is 594 less than the AD or CE year in the Gregorian calendar if it is before Pôhela Bôishakh, or 593 less if after Pôhela Bôishakh. A revised version of the Bengali calendar was officially adopted in Bangladesh in 1987.