I was born on the 30th of Cheshvan which as he explains is one of the days that doesn't show up every year (I guess is the equivalent of February 29th). I've always wondered how many birthdays I've had - does anyone know of a list of which years are chasar/maalei?
The missing years are also interesting:
https://en.m.wikipedia.org/wiki/Missing_years_(Jewish_calend...