Context : The 1935 Quetta earthquake (Urdu: بلوچستان زلزلہ‎) occurred on 31 May 1935 between 2:33 am and 3:40 am at Quetta, Balochistan, British Raj (now part of Pakistan). 
Answer : 31 May 1935
What date is associated with 1935 Quetta earthquake?