In order to count the number of days of a specific month, we will be using numpy.datetime64() method of numpy module.
Examples:
Input: month = 2; year = 2016 Output: 29 days Input: month = 12; year = 2020 Output: 31 days
Let us assume the month whose number of days we want to count be P and the next month is N. We will subtract the first date of the month P from the first date of the month N. Implementing this in numpy.datetime64() method.
Syntax:
For all months except December:
numpy.datetime64('yyyy-N-01') - numpy.datetime64(yyyy-P-01')
For December:
numpy.datetime64('yyyy-P-31') - numpy.datetime64(yyyy-P-01') + 1
Below are various examples which depict how to count the number of days of a specific month using numpy module:
Example #1:
In this example, we will find the number of days in the month of February of the year 2016.
# import module import numpy
# explicit function to calculate # number of days def calcDays(month, year):
date = 0
# December case
if month = = 12 :
end = str (year) + '-' + str (month) + '-31'
begin = str (year) + '-' + str (month) + '-01'
date = 1
else :
# single digit months
if month < 10 :
endM = '-0' + str (month + 1 )
beginM = '-0' + str (month)
# double digit months
else :
endM = '-' + str (month + 1 )
beginM = '-' + str (month)
end = str (year) + endM + '-01'
begin = str (year) + beginM + '-01'
# return number of days
return (numpy.datetime64(end) - numpy.datetime64(begin) + date)
# Driver Code # get month month = 2
# get year year = 2016
# call the function print (calcDays(month, year))
|
Output:
29 days
Example #2:
Here, we will find the number of days in the month of April of the year 2001.
# import module import numpy
# explicit function to calculate # number of days def calcDays(month, year):
date = 0
# December case
if month = = 12 :
end = str (year) + '-' + str (month) + '-31'
begin = str (year) + '-' + str (month) + '-01'
date = 1
else :
# single digit months
if month < 10 :
endM = '-0' + str (month + 1 )
beginM = '-0' + str (month)
# double digit months
else :
endM = '-' + str (month + 1 )
beginM = '-' + str (month)
end = str (year) + endM + '-01'
begin = str (year) + beginM + '-01'
# return number of days
return (numpy.datetime64(end) - numpy.datetime64(begin) + date)
# Driver Code # get month month = 4
# get year year = 2001
# call the function print (calcDays(month, year))
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Output:
30 days
Example #3:
In the below program, we will find the number of days in the month of December of the year 2021.
# import module import numpy
# explicit function to calculate # number of days def calcDays(month, year):
date = 0
# December case
if month = = 12 :
end = str (year) + '-' + str (month) + '-31'
begin = str (year) + '-' + str (month) + '-01'
date = 1
else :
# single digit months
if month < 10 :
endM = '-0' + str (month + 1 )
beginM = '-0' + str (month)
# double digit months
else :
endM = '-' + str (month + 1 )
beginM = '-' + str (month)
end = str (year) + endM + '-01'
begin = str (year) + beginM + '-01'
# return number of days
return (numpy.datetime64(end) - numpy.datetime64(begin) + date)
# Driver Code # get month month = 12
# get year year = 2021
# call the function print (calcDays(month, year))
|
Output:
31 days