History of South America

What calendar do you use in the US?

In the United States, the predominant calendar in use is the Gregorian calendar. The Gregorian calendar is a solar calendar consisting of 365 days in a non-leap year and 366 days in a leap year. The leap year occurs every four years, with the exception of every 100 years, unless that centenary year is divisible by 400. Thus, for example, the year 2000 was a leap year, but the year 1900 was not.

The months of the Gregorian calendar are January, February, March, April, May, June, July, August, September, October, November, and December. Each month has a specific number of days, ranging from 28 to 31 days. February has 28 days, except in leap years when it has 29 days.

The days of the week in the Gregorian calendar are Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday. Each day of the week corresponds to a number from 0 to 6, where 0 represents Sunday and 6 represents Saturday.