Task: Question Understanding
Input (English): Context : Kaliganj massacre (Bengali: কালিগঞ্জ হত্যাকান্ড) refers to the massacre of unarmed Bengali Hindus fleeing to India in Kaliganj market, in the present day Jaldhaka Upazila of Nilphamari District on 27 April 1971. 
Question : What is the full date that Kaliganj massacre crashed on?
Output (English): point in time