which years did WWII start and end?

1939 to 1945..

The war begans with hitler war on polend and it's end with formel surrender of japan.

• The world war 2 started from 1st September 1939 to 2nd September 1945.The world war 2 started when Adolf hitler the dictator of germany conquer poland from the west and after 2 days Britain and France declared war on Germany.on 7th may 1945 Germany surrendered to allies in remis,france ending World war 2 and on 2nd September 1945 world war 2 officially ended.