初 = beginning 初五 = beginning five Hence the fifth day!

你这边的初是代表开始的意思，因为在中国初几只能延续到初9吧好像，比如3月初9代表的意思是一个月的开始，但是只能延续到初9，10以前就不能代表初开始了，希望能帮到你 初：开始 You are at the start point, because in China at the beginning of several lasts only until the early9 it seems, for example3 early9on behalf of a month, but only until the beginning of 9,10had not representative of the beginning, hoping to help you: start early

in Chinese lunar calendar,we'd like to put a "初" before the date of the1st to the 10th day.like if it's the 11th day, we don't need to put a "初"in front of the day, it's probably because of the Chinse pronounciation.

The fifth day of the fifth month in Chinese lunar Calendar, is a traditional Chinese festival in memory of a great patriotic poet Qu Yuan.