This year’s Earth Hour will be held on Saturday, 25 March, 2017. The Earth Hour is an annual environmental campaign that brings attention to the effects of climate change by asking people to switch their lights off  at homes and businesses for an hour at 8:30 p.m. (20:30), local time, usually on the last Saturday of March. In line with the campaign, Beşiktaş Vodafone Arena will turn its light off tomorrow at 20:30 for an hour.