The Gregorian calendar is divided into 12 months. © Flickroomphoto.com/toeytoey2530 Each calendar month has either 28, 30, or 31 days during a common year, which has 365 days. During jump years, which occur about every 4 years, we add an extra ( intercalary ) day, Leap Day, on 29 February, making jump years 366 days long.
Reading: 12 Months of the Year
This is to keep our stream calendar aligned with the solar year and astronomic seasons marked by equinoxes and solstices. Go to calendar
Contents
The 12 Months
The Gregorian calendar consists of the following 12 months :
- January – 31 days
- February – 28 days in a common year and 29 days in leap years
- March – 31 days
- April – 30 days
- May – 31 days
- June – 30 days
- July – 31 days
- August – 31 days
- September – 30 days
- October – 31 days
- November – 30 days
- December – 31 days
Tracking the Moon’s Orbit
The months originated as a room to mark time and break up the year into shorter periods based on the Moon ’ s eye socket around Earth. The son calendar month is even derived from the word Moon. equally far as we know, months were first used in Mesopotamia sometime between the years 500 BCE and 400 BCE to measure the natural period related to the lunar calendar month, or synodic calendar month, which is the time it takes for the Moon to go through all the Moon phases.
Moon phases in your city
How Many Days in a Month?
The Gregorian calendar has 4 months that are 30 days long and 7 months that are 31 days farseeing. February is the only calendar month that is 28 days long in a common year and 29 days long in a jump year .
How Many Days in a Year?
The Gregorian calendar has 365 days in a common year, and 366 days in a jump year. The ancestor of our modern calendar, the ancient Roman calendar, had entirely 304 days .
How Many Months in a Year?
Our stream gregorian calendar and its predecessor, the Julian calendar, both have 12 months. The month name we use today are derived from the Roman calendar, which initially had lone 10 months, with the calendar year starting in March ( Martius ). calendar with holidays
The Romans named some of the months after their position in the calendar year : September means the seventh month, October the 8th, November the 9th, and December the tenth calendar month. however, when January and February were finally added and the begin of the calendar year was moved to January, the stead of these months no long corresponded with the original meaning of their names. today, we hush call the 9th calendar month of the class September, the 7th month. The Islamic calendar, the Hebrew calendar, and the Hindu calendar besides habit months to divide up the class. Although the Gregorian calendar is the most normally used calendar today, other calendars are still used in many parts of the earth to calculate certain holidays and annual feasts .
Old Names of Months
Months in the ancient Roman calendar admit :
- Mercedonius – an occasional month after February that would be used to realign the Roman calendar. Today we use Leap Day for this alignment.
- Quintilis – renamed July in honor of Julius Caesar in 44 BCE.
- Sextilis – renamed August in honor of Roman Emperor Augustus in 8 BCE.
