The next full moon is at 12:56 pm EST on Monday, May 12 and is known as the Flower Moon. Here is a look at all the full moons ...

Julius Caesar was believed to have messed up the months in a year, but was trying to fix the solar calendar, resulting in one ...

Each Islamic month lasts either 29 or 30 days, depending on the moon’s visibility. Consequently, a lunar year is ...

Due to the complexities of the various types of calendars, the date of Easter can be as early as March 22 and as late as April 25. Here's why.