Articleship

under direct entry route, how 9 months is calculated for articleship?

when 9 months is considered completed,
till the filling of examination form or till examination?.

i am a student who is from direct entry route and i started my 9 months articleship from december 2017 to june 2018. then, i switched the firm and joined the new firm from 1st august 2018. Can i appear in nov attempt?