'Leap second' around world (17)

Photo taken on 235960 GMT on June 30, 2015 shows number 28 formed with cameras and lens which marks the 28th birthday of the photographer in Jahannesburg, South Africa. 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/Zhai Jianlan)