Salut et Fraternité vs Daimyo Clock

Conversion software between the gregorian calendar and the republican calendar. Created during the french revolution, the republican calendar had 12 months of 30 days, followed by 5 or 6 complementary days. It was legal in France from 1793 to 1806. Each day was associated to a plant, an animal or a tool. The app gives too the decimal time: the cientists wanted to change our way to measure the time in the day, each one being divided in 10 hours of 100 minutes of 100 seconds. By double tapping the screen Today, you can send messages with the republican date by mail or in Facebook or Twitter, etc.. N.B.: Facebook does not allow the perfil of the posts. But in the app, you can copy the date, to manually paste it in the Facebook post.

Daimyo clock is a recreation of a mechanical clock developed in the seventeen century based on western clocks but modified to show traditional Japanese time. Traditional Japanese time divides the day and night into six equal periods from dawn to dusk and dusk to dawn respectively. Over the course of a year as the daylight and nighttime periods lengthen and shorten, the length of these six day or night periods change. Unlike Western clocks which are regulated by a single pendulum and run at a constant speed day or night, Japanese clocks incorporated two pendulums, and switched between them at dawn and dusk. Adjustment for the changing daylight and nighttime hours was accomplished by adjusting the effective length of the pendulums, normally done every two weeks, or twenty-six times a year. This kept the time shown on the clock reasonably close to the correct time, provided that the clock had been set correctly initially. This modern implementation is much more accurate and precise than the original clocks. In this implementation, the biweekly adjustments of the mechanical clock are made continuously, thus the day or night period length are always correct. Noon on the clock will, if location services are enabled, occur when the sun is at the zenith, or solar noon. Day start and end correspond to the beginning or end of twilight, and are calculated accounting for the refraction of the Earth's atmosphere. There are three situations where the clock my not show the local time in the Japanese manner: 1. If location services are off, Daimyo Clock will show the time for Tokyo, Japan. 東京 will be displayed on the clock face in this case. 2. While the application is obtaining an updated location after launch or returning to foreground. 3. Near the North or South poles the sun may either be above the horizon or below it for the entire day (24 hour period). In this case, the Japanese definition of time no longer applies, so the clock face will be shown without a clock hand.