Dave_from_Marietta
DIS Veteran
- Joined
- May 19, 2001
- Messages
- 4,486
Not all the holidays, no. The reason the U.S. Naval Observatory calculates these dates is that the date is based on the calendar and astronomical observations.
More or less... Easter is the first Sunday after the first full moon after the Spring Equinox. And Ash Wednesday is 42 days before that. But there are a bunch of small-print conditions that can adjust the date of Easter. It's pretty complex and if you want to know all about that, you can find an explanation at their site.
As for other holidays... Mother's Day is the second Sunday of May, Father's Day is the third Sunday of June, Election Day is the first Tuesday after the first Monday of November. Thanksgiving is the <b><i>4th</i></b> Thursday (not the <b><i>last</i></b> Thursday) of November.
More or less... Easter is the first Sunday after the first full moon after the Spring Equinox. And Ash Wednesday is 42 days before that. But there are a bunch of small-print conditions that can adjust the date of Easter. It's pretty complex and if you want to know all about that, you can find an explanation at their site.
As for other holidays... Mother's Day is the second Sunday of May, Father's Day is the third Sunday of June, Election Day is the first Tuesday after the first Monday of November. Thanksgiving is the <b><i>4th</i></b> Thursday (not the <b><i>last</i></b> Thursday) of November.
