The six-hour clock (Italian: sistema orario a sei ore), also called the Roman (alla romana) or the Italian (all'italiana) system, is a system of date and time notation in Italy which was invented before the modern 24-hour clock. In this system, the day starts at the evening, at the end of twilight, approximately half an hour after sunset, and the following 24 hours are divided into four cycles of six hours each.
The six-hour clock (Italian: sistema orario a sei ore), also called the Roman (alla romana) or the Italian (all'italiana) system, is a system of date and time notation in Italy which was invented before the modern 24-hour clock. In this system, the day starts at the evening, at the end of twilight, approximately half an hour after sunset, and the following 24 hours are divided into four cycles of six hours each.
Source: Wikipedia "Italian six-hour clock" · CC BY-SA 4.0
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