we already have extensions like Semantic Result Formats, Semantic Forms Input and Semantic Extra Special Properties to gather useful but less common formats. Would it make sense to create a similar collection of extra types (possibly moving less used existing ones, like temperature, from SMW core to the extension)? Are there some types that are commonly requested?
As for me, I'm missing duration (like [[Cooking time::1h]] or [[Personal best::01:09.48]]). I realize that localization will be difficult for that one, but at least ISO 8601 (PT6M4S) and a few commonly occuring formats (08:42.00, 8$B;~(B42$BJ,(B, 8 h 42 min, etc) might be possible to implement. Are there other possible types that are missing out there (that someone actually needs)?