Calendars around the world follow a combination of solar and lunar cycles: periodic mismatches between the two have given rise to different ways of keeping track of the days.

India also has more than one system in regular use, although as Pranav mentions, only one vernacular calendar is official.

It should be possible to devise algorithms that generate the equivalent date corresponding to a different system, but they need to be, of course, sensitive to the periodic 'corrections' inserted to synchronise with the passing seasons. For the Gregorian calendar (with which you are familiar) in use in most places, this adjustment is popularly thought of as only the leap year, but there are other fine adjustments at longer intervals.

On 15 Jan 2014 15:30, "Gerard Meijssen" <gerard.meijssen@gmail.com> wrote:

Hoi Harsh,

One obvious thing is to make sure that all the items used in Wikidata have labels in the Gujarati language. This allows you to find them and to see them wherever they are used.

I have started adding statements like this months follows / is followed by that month.. Given that some articles list months from the same calendar, this can only be right when all aspects of a month are exactly the same (think number of days, the number it is given in the year etc). As I do not know all this I have asked for help.

What would be useful to know is if a calendar is used on a specific Wikipedia (and in a certain language). When other calendars are used, it makes sense for dates to be visible in the calendars used in Wikipedias. I assume that it is possible to convert to and from the "common" calendar.

I do know very little about calendars; I only use one. So when you/we find that we cannot express facts about a calendar, we may need more properties to express this.. Are there any ? I will gladly help in getting these properties requested and created.

Finally, Wikipedia and by inference Wikidata is about the sum of all knowledge. It makes sense for us to know about any and all calendars.
Thanks,
GerardM

On 15 January 2014 09:59, Harsh Kothari <harshkothari410@gmail.com> wrote:

For Gujarati I can help.

Thanks
Harsh

On Jan 15, 2014 2:27 PM, "Gerard Meijssen" <gerard.meijssen@gmail.com> wrote:

Hoi,
I blogged about calendars. The problem I face is that I am adding statements to the calendars in use in India.. I have worked on the Nepali and the Bengali calendar and, I find that in the English Wikipedia some months are merged into one article.

What I want to know is if these months exactly are at the same time or not. Many calendars have special days. It would make sense to have an item for them as well. I assume that many of the Indian Wikipedias have articles for such events. It will help when they are known to be part of a specific calendar..

Are there people who can help me with this ?
Thanks,
GerardM

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