As reported last week, the entire weekend timetable at European races will be shifted back in a bid to help attract a larger television audience.
The races will now start 10 minutes past the hour, to allow broadcasters to better incorporate the pre-race build-up if their programming starts on the hour.
A statement issued by F1 said: "Some broadcasters usually go on air precisely on the hour, hence missing the tension and emotion that characterize the minutes before the start of each Grand Prix.
A statement issued by F1 said: "Some broadcasters usually go on air precisely on the hour, hence missing the tension and emotion that characterize the minutes before the start of each Grand Prix.
"Thanks to this change, television viewers will be brought closer to the teams and the drivers and fully enjoy the spectacle offered just before the red lights go out."
The French Grand Prix will also start at 4.10pm local time to avoid a clash with the World Cup group game between England and Panama.
F1 added: "Other minor adjustments have been made in order to avoid clashes with other major sports events like the FIFA World Cup, to allow for differing sunset times, and to attract a wider attendance to promoters' events."
Formula 1 also announced the schedule of Azerbaijan Grand Prix 2018 to be held in Baku from April 27-29:
April 27
Practice 1: 13:00-14:30
Practice 2: 17:00-18-30
April 28
Practise 3: 14:00-15:00
Qualification: 17:00-18:00
April 29
Race: 16:10
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