Grab your calendar and a pen, it's time to mark down the first day of summer. When is the first day of summer? This year, the first day of summer, also known as the summer solstice, is Thursday ...

As a result, every year the common, 365-day calendar lags behind the solar year by about one quarter of a day. While this might not seem like much of a difference, over four years, it works out to ...

Well, according to the astronomical calendar, summer in the Northern Hemisphere officially begins on Saturday, June 21 and ...

2024 is a leap year, which means that this February will have an extra day tacked onto the end. But why February? Why not put Leap Day at the beginning of the year, say Jan. 0, or at the end, Dec.

By comparison in the astronomical calendar winter always starts at the winter solstice - or shortest day. This year the winter solstice in the northern hemisphere is on 21 December and therefore ...