The autumnal equinox this year is at 7:03 p.m. Sept. 22. We typically think of the first day of fall as something that happens all day long, but the equinox is the time when the sun crosses the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Did you know that it’s not always the case ...

Most people were taught some variation of the classic rhyme: "Thirty days hath September,April, June and November,All the rest have thirty-one,Save February at twenty-eight." But there are two other ...

Sidereal year: The time necessary for the Earth to make one complete revolution around the sun; 365 days, 6 hours 9 minutes, 9.5 seconds. The calendar year is 365 days, and 366 days every fourth year.

Year (sidereal year): The period during which the earth makes one complete revolution around the sun. It is equal to 365 days, 6 hours, 9 minutes, 10 seconds or 365.2564 days. The calendar year is ...

It's not every year that you see February 29 on the calendar -- and it's not technically every four years either. Thursday is officially leap day. For some, its birthdate, or a day for special deals ...

When you think about astrology—i.e., when you put your sun, moon, and rising in your Instagram bio, or look up your daily horoscope online—you’re likely thinking about tropical astrology. Yes, you ...

What is a year? To a child, this may be defined as the "the time I must wait until the next Christmas." Perhaps a better definition would be: Year: The time it takes the Earth to make one complete ...

I decided a while ago to make this post an annual BA tradition on Jan. 1, which is a more polite way of saying it’s a repost and I’m sometimes a tad on the lazy side. I’ve punched it up here and there ...