Photo taken on 235960 GMT on June 30, 2015 shows the river view of the Nile River in Cairo, Egypt. Timekeepers on Tuesday tacked a second to the clock to compensate for a slightly slower Earth rotation. The leap second means the clock will move from 23:59:59 to 23:59:60 before it hits midnight of universal time. (Xinhua/Cui Xinyu)
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