Definition: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The Silvertown explosion occurred in Silvertown in West Ham, Essex (now part of the London Borough of Newham, in Greater London) on Friday, 19 January 1917 at 6.52 pm.
Question : On what date did Silvertown explosion take place?
Output:
19 January 1917