| January => 31
| | February => 28 (29)
| | March => 31
| | April => 30
| | May => 31
| | June => 30
| | July => 31
| | August => 31
| | September => 30
| | October => 31
| | November => 30
| | December => 31
| | |
Have you noticed that seven (7) months of the year have 31 days - January, March, May, July, August, October, December. These are Months 1, 3, 5, 7, 8, 10, 12. (Note the almost alternate nature!)
Only four months have 30 days - April, June, September, November. Months 4, 6, 9, 11. (Again, almost alternate!)
February has 28 days except for leap years when there are 29 days (once every 4 years).
More broadly, there are only two occasions where there are consecutive months of 31 days - December/January and July/August.
What emerges is a pattern of alternate size similarity!
Want to find the number of days in a specific consecutive group of months?
- Select Start month.
- Select number of months to accumulate.
- Press the 'Calculate Number Of Days' button (when it appears !).
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