Lesson 2 of 5 · Day of the week / odd days
Leap rule
Clocks and Calendars · for IPMAT Indore, IPMAT Rohtak and JIPMAT
The exam method
- Same calendar. both ordinary or both leap, and the odd days in between total a multiple of 7 (2009 → 2015; 2023 → 2034).
Formulas you need
Watch out
- Century years: 1900 is ordinary, 2000 is a leap year (2000-2099 has 25 leap years).
- Leap day position: 1 March to 1 April is 31 days even in a leap year; the extra day is in February.
Picked from the Day of the week / odd days note for this micro-concept automatically. The whole note: Day of the week / odd days.