Today - st. patrick's day
tomorrow - two friends have birthdays
Wednesday - his due date
Thursday - the first day of spring, most years
Friday - the first day of spring this year
Saturday - a full moon
Sunday - Easter
Monday - ....can't think of anything
Tuesday - ....still nope
next Wednesday - Leonard Nimoy's birthday, according to Andrew
Over the past 4 days, he's missed two other friends' birthdays, the Ides of March, and Pi Day. You could have many obscure-holiday parties in March.