This could well mean that this timepiece was used for astronomical observations on a temporary location. On 1 November 1795 (11 brumaire by the new calendar) a law was passed which required the creation of clocks with ten hours in the day, 100 minutes in an. Keep in mind that this conversion assumes a 24-hour clock format. Therefore, 2 hours and 30 minutes is equivalent to 2.5 in decimal time. Because of this, astronomical observations are still noted in decimals. Decimal Time Hours + (Minutes / 60) Here’s an example to illustrate the process: Let’s say we have a time of 2 hours and 30 minutes. The calculator will display the results in decimal format. The screws tot he sides make the clock tick regularly when the surface is not level.Ī remark about the astronomer Pierre-Simon Laplace (founder of modern astronomy who lived from 1749 until 1827) who had a decimal watch which he used for all his observations and calculations. Using our time-to-decimal calculator is straightforward there are just a couple of steps you need to complete: Step 1: Add the working hours in the following format HH:MM:SS, and. ![]() A day had 10 hours, 100 minutes per hour, and 100 seconds per minute. That is, fifty percent of the UTC day has passed. In 1793, the French switched to French Revolutionary Time, creating a decimal system of time. ![]() The handle obviously was used to transport the clock so this timepiece was made for use on location. When the time is 12:00 (noon) on a UTC clock, the UDT clock will show 500000. To help people transition to the new time format, clock manufacturers began producing clocks with faces showing both decimal time and the old time. Now arises the question what was this timepiece used for? What clues can find in the unusual handle on top and the two screws tot he sides? Time could be written fractionally, for example, 6 hours 42 minutes became 6.42 hours and both meant that same thing. This is based on the way the movement and case are built. Once the Jesuits brought Western time to the country, China adopted the system. But it never caught hold and was abandoned due to public disobedience, the lack of actual decimal clocks and the common resistance that people hold to change.īut this clock isn’t French and wasn’t made at the end of the 18th Century! To our opinion this clock was made in Germany around 1840. And until 1645, China had a decimal time system that went back millennia. There was a short period in history during the French Revolution, when decimal time was introduced in stead of our present dodecimal time based on 12. This means that the dial reads 10 hours of 100 minutes of 100 seconds. It converts standard time to metric time: Standard (24 hours) clock. It is the decimal numbering that makes this clock very rare. This is a dial which has several callibrations for the different hands to make reading it more easy. The ‘regulator’ dial is unusual for table clocks. Although it is not uncommon to find clocks that are unusual, this one really fitted in the ‘never seen before’ category.
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