Calculators for everyday use!
Custom Search
Home Average Speed Decimal To Fraction
About Numbers
Combine & Permutate
Roman/Arabic Numerals
Factors Of A Number
Mental Multiplication
Nature Of Numbers
Numbers In Words
Prime Numbers
Random Numbers Generator
Square Root Progression
Binary To Decimal
Dry Measures
Roman/Arabic Numerals
Fahrenheit To Centigrade
Number Base Converter
Dates & Times
Add/Subtract Time Elements
Add/Subtract Time From Date
Days Between Dates
Days In Consecutive Months
Divide Time Into Segments 
Months Of The Year
Multiply/Divide Time Elements
Which Day This Date
Which Week Of The Year
Credit Card Calculator
Cumulative Discount Tables
Currency Converter
Discount Tables
Internal Rate Of Return
Payback Period
Rates Of Interest
Rental Equivalents
Reserve Funds
Time To Accumulate Funds
Convert Decimal To Fraction
Convert Fraction To Decimal
Add/Subtract Lengths
Lengths Conversions
Multiply/Divide Lengths
Multiplication Tables
Multiply/Divide Lengths
Multiply/Divide Time
Multiply/Divide Weights
Age Calculator
Aspect Ratio Calculator
Average Speed Calculator
Component Of A Circle
Create And Compare Colors
Maximum Heart Rate
Mean And Standard Deviation
Spaces In The Alphabet
Zodiac Signs & Traits
Percentage Change
Add/Subtract Weights
Multiply/Divide Weights
Weights Conversions

Days In Consecutive Months Of The Year

The calendar year starts on January 1st of each year and ends on December 31st. A Fiscal year is twelve consecutive months starting on the first day of a month. The days of the month in each year is as follows:-
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 !).
Days In Groups Of Months
Start Month 

See also
Number Of Days Between Two Dates



FREE VigFX 15-day trial
10% off Home automation products with coupon code FALL10 at Smarthome - shop now!

Home About Us
Contact Us Which Day This Date Add Time To Date