The 50G, this wonder...

[Dieter]

(04-28-2016 09:45 AM)Tugdual Wrote:  The Julian calendar has a distinct number for each day that makes it easy to calculate date day differences.

You are probably confusing Julian Day Numbers (JDNs, consecutive numbers for every day) and the Julian Calendar, the one that was used until the 16th century, with one leap year every four years. As opposed to the Gregorian calendar with a more precise rule for leap years.

(04-28-2016 09:45 AM)Tugdual Wrote:  It is very likely that Gregorian is only used for the user interface.

As far as I know the 48/49/50 has no special "date" data type. That's why dates are entered and returned as reals (mm.ddyyyy etc.).

Of course the date related functions are evaluated by converting the dates to JDNs, adding/subtracting the desired number of days and converting the resulting JDN back to day, month and year.

Dieter