Editing....
Hope someone worte a Japanese version...
- don't know if there are similar tutorial in wikibook...might copy
Numerical System[]
basic[]
decimal[]
fraction[]
extended[]
Time[]
Modern system[]
Old system[]
Date[]
Solar Calendar[]
Traditional Calendar[]
In Chinese 舊曆， or 農曆，Usually called as Lunar calendar陰曆, but Actually a Lunar+Solar combined calendar.