Question
What is a leap year
Answers
GPT-4o mini
A leap year is a year in which an extra day is added to the calendar to help synchronize it with the astronomical year or seasonal year. In the Gregorian calendar, which is the calendar system used by most of the world today, a leap year occurs every four years, with the following rules:
1. A year is a leap year if it is divisible by 4.
2. However, if the year is divisible by 100, it is not a leap year, unless:
3. The year is also divisible by 400, in which case it is a leap year.
For example:
- The year 2020 was a leap year (divisible by 4).
- The year 1900 was not a leap year (divisible by 100 but not by 400).
- The year 2000 was a leap year (divisible by 400).
As a result, leap years have 366 days instead of the usual 365 days, with February 29 being the extra day added to the calendar.
1. A year is a leap year if it is divisible by 4.
2. However, if the year is divisible by 100, it is not a leap year, unless:
3. The year is also divisible by 400, in which case it is a leap year.
For example:
- The year 2020 was a leap year (divisible by 4).
- The year 1900 was not a leap year (divisible by 100 but not by 400).
- The year 2000 was a leap year (divisible by 400).
As a result, leap years have 366 days instead of the usual 365 days, with February 29 being the extra day added to the calendar.