Republican Date

There are two different versions of the Republican calendar: Romme's original equinox calendar from the Revolution, used on this page, and Delambre's reformed algebraic calendar, which can sometimes be one day ahead of the equinox.

Current Republican date and decimal time in your local time:

Current Republican date and decimal time in Paris Mean Time (PMT):

This for the original, official Republican calendar. Dates in the algebraic, reformed calendar may be one day different.

Each day has a different animal, vegetable, mineral or farm implement associated with it, called the rural calendar.

French Republican calendar date, with decimal time, as written in genealogy records during the Revolution. The decimal time is shown with the hour and dĂŠcime, which is a tenth-hour decimal, about a quarter-hour duodecimal. The first version is rich text; the second is Unicode, suitable for sharing on Facebook or Twitter. Copy and paste the one which looks better in your text editor:

This is an imitation of how dates and times were written in civil genealogy records in France during the Revolution, as you can see below:

All Republican calendar dates on this site are according to the original calendar, with years starting on the day of equinox, unless specified otherwise. I know that some prefer the proposed reform, which would be easier to use, but original calendar was the only one actually used. 

Times are either in your browser’s local time or Paris Mean Time (PMT), aka temps moyen de Paris (t.m.P.), as it is the obvious universal time zone for timestamps here. It is defined by the Meridien de Paris, the longitudinal line that runs through the Paris Observatory, used by Metropolitan France in previous centuries for telling time and navigating the world. 

At the time of the Revolution, there were no time zones, and every city kept its own time by observing the sun, which varies compared to local mean time. PMT is ahead of GMT, or UTC, by 9 minutes 21 seconds sexagesimal (6 minutes 49 seconds decimal). 

Today, France uses Central European Time, which is one or two hours ahead of the hated Greenwich time, depending on the time of year. But had Revolutionary time taken off, I’m sure we’d all be on Paris Time now!

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