Changes

Japan abandoned the traditional 12-hour ''koku'' system of timekeeping in [[1873]], and adopted the Western system, alongside the adoption of the [[Japanese calendar|Western calendar]].<ref name=british/>

Japan abandoned the traditional 12-hour ''koku'' system of timekeeping in [[1873]], and adopted the Western system, alongside the adoption of the [[Japanese calendar|Western calendar]].<ref name=british/>

[[File:Clock2.jpg|thumb|500px|center|A very rough illustration of how the periods of the ''koku'' lengthened, shortened, and shifted with the seasons. Note the modern 24-hour clock at top and bottom, and the traditional bell (''koku'') numbers indicated within the day/night bar. In winter, dawn is later and dusk earlier than in summer, squeezing the six ''koku'' of daylight into briefer periods each.]]

[[File:Clock2.jpg|thumb|500px|center|A very rough illustration of how the periods of the ''koku'' lengthened, shortened, and shifted with the seasons. Note the modern 24-hour clock at top and bottom, and the traditional bell (''koku'') numbers indicated within the day/night bar. In winter, dawn is later and dusk earlier than in summer, squeezing the six ''koku'' of daylight into briefer periods each. This illustration is imperfect, but in actuality, daylight would be divided equally into six periods, and night also divided equally.]]

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