Re: Time ontology extension for non-Gregorian calendars

Dear All,

Thanks Simon for your answer!

I think I misrepresented the type of extension I'm thinking of, as I
can't really see it mentioned in the ISO docs. Here's one of the
examples I'm thinking of: a typical sequence of day of the month (or
month of the year) in a lunar calendar is as follows:

1
2
2 (bis)
3
5

where there are duplicate and omitted values. In that case, my first
instinct is to use literals that would go like

"---1"^^time:generalDay
"---2"^^time:generalDay
"---2b"^^time:generalDay
"---3"^^time:generalDay
"---5"^^time:generalDay

but "---2b"^^time:generalDay is invalid as it contains a "b" (I just
made that notation up but I don't think there's any). Another option
would be something like

time:dayIsDuplicate true

(but this has subtle problems with the open world assumption).

This kind of feature is common to so many calendar systems all over
the world that I think it would be a valuable addition to OWL-Time and
would ease the design of extensions significantly.

What do you think?

Best,
-- 
Elie

Received on Friday, 22 May 2020 10:46:13 UTC