Gregorian calendar
The modern calendar has 12 months. This topic is part of Timekeeping within History. This page currently draws on 7 supporting questions, with answers and bonus facts available below.
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Gregorian calendar trivia questions
The Gregorian calendar is the calendar used by most of the world for civil purposes. How many months does it have?
Answer: 12
Bonus fact: The modern calendar has 12 months.
Who introduced the Gregorian calendar in 1582?
Answer: Pope Gregory XIII
Bonus fact: It reformed the earlier Julian calendar.
What leap-year rule distinguishes the Gregorian calendar from a simple every-four-years system?
Answer: Century years must be divisible by 400
Bonus fact: Thus 2000 was a leap year, but 1900 was not.
How many months are in the Gregorian calendar year?
Answer: 12
Bonus fact: The Gregorian calendar divides a normal year into 12 months.
How many days are in a leap year in the Gregorian calendar?
Answer: 366
Bonus fact: Leap years add February 29, giving the year 366 days.
Under Gregorian calendar rules, a century year such as 1900 is a leap year only if it is divisible by what number?
Answer: 400
Bonus fact: Century years must be divisible by 400 to be leap years, which is why 2000 was a leap year but 1900 was not.
Which calendar is the civil calendar used by most of the world today?
Answer: Gregorian calendar
Bonus fact: The Gregorian calendar was introduced in 1582 and gradually became the dominant civil calendar.