1902 1 Sept. 5/2 The half-yearly four-day closing of the British Museum reading room.
1909 3 Sept. 12/1 Thus making the first four-day westward voyage.
1935 Aug. 221/1 The five-day week has already arrived, the four-day week will come and there will be increasing leisure to be employed.
1960 9 Apr. 1/3 Thousands of men stayed away from work..trying..to enforce a four-day week.