【カレンダー／暦】Reading Japanese calendar is little bit complicated a specially form 1st to 10th.
Reading Month is very easy just adding a number + 「がつ」January is [1+gatsu] February is [2+gatsu] however you have to memories from 1st ~10th of month and 14th, 20th, 24th
Oh…. NO… try to say your birthday and your family birthday. I think it is enough now, yes??