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1. A non trivial way of showing the fact that we have more day time during the summer, is showing the time moving slower during summer days! the clock ticks the same number of times as usual: 60 seconds * 60 minutes * 12 hours a day.
2. That's why Jewish Clock needs to know the device's location before showing the time.
3. Jewish Clock is a 24 hour clock which attempts to visualize the concepts of the clock that is used in Jewish law: Shaot Zmaniyot (or Zmanim).
4. The modern way of using charts which translate the laws defined by Shaot Zmaniyot into our familiar clock, are not needed anymore when using this clock.
5. For example, according to Jewish law, the latest time one can pray the morning prayer, Shacharit, is when a third of the day passed, or in other words, 4 out of the 12 hours of the day have passed.
6. In particular, the clock divides the day, starting at sunrise, and ending at sunset, into 12 equal parts, which are each called one day hour.
7. So the clock ticks slower. Location.
8. In the summer the days are longer, and they leave much less for the night, and in the winter vice versa.
9. Sunrise and sunset are strongly tied to ones location.
10. The basic idea is that certain daily deadlines were defined as portions of the day.
11. An important observation is that day lengths keep on changing, as do the lengths of the nights.
12. Shacharit deadline is alway at 4.
13. The night is divided in the same manner.