In English, a range marked by a slash often has a separate meaning from one marked by a dash or hyphen. "24/25 December" would mark the time shared by both days (i.e., the night from Christmas Eve to Christmas morning) rather than the time made up by both days together, which would be written "24–25 December". Similarly, a historical reference to "1066/67" might imply an event occurred during the winter of late 1066 and early 1067, whereas a reference to 1066–67 would cover the entirety of both years. The usage was particularly common in British English during World War II, where such slash dates were used for night-bombing air raids. It is also used by some police forces in the United States.