what time is the grand prix starting?
The Limit
entailment
 For the 2015 season , on safety grounds , the FIA also implemented measures to alter the start time of certain Grands Prix by requiring that it is not less than four hours before either sunset or dusk , except in the case of official night races . 

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 In July 2010 , Bernie Ecclestone announced that a 10 @-@ year deal had been reached with the race organisers , keeping the race on the calendar until at least 2020 . 

neutral
 One week prior to the race , Hurricane Patricia — the largest tropical storm cell in the Northern Hemisphere on record — crossed the Mexican coastline near Cuixmala in Jalisco state . Patricia had previously disrupted the United States Grand Prix . 

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 The decision to hold the race despite the ongoing protests made it one of the most controversial Grands Prix in the sport 's sixty @-@ year history . 

entailment
 After the 2011 Bahrain Grand Prix was cancelled , the race was reinstated for the 2012 season with a provisional date in October . The final version of the calendar brought the race forward to April . 
