美国洛杉矶机场夜景:When is Fathers' Day ?

When is Fathers' Day ? When is Mother's Day ? when is Ash Wednsday when is your birthday? When is Thanksgiving Day? When is the celebration? When is Christmas? What is always full when it is working and empty when at rest?what's the answer for it? like my fathers come to pass，seven years has gone so fast，wake me up when september ends是什么意 when a earthquake is happening