CODEWITHSUNDEEP
pythondatedatetime
Jack
Jack

Reputation: 69

Comparing dates using datetime from a different calendar year

If I try to compare dates in the form "Month Year" and the year is different, the month difference won't be correct. If I compare January 2016 to March 2017 the month difference will be 3 and not 14. Is there a way I can put months to 0 when the year increases.

import datetime

month_names = ["January",   "February", "March",    "April",
           "May",       "June",     "July",     "August",
           "September", "October",  "November", "December"]

months = {name : (index + 1) for index, name in enumerate(month_names)}

current_month    = datetime.date.today().strftime('%B')
month_joined     = input("Please enter the month you joined: ")
month_difference = abs(months[current_month] - months[month_joined])

current_year = int(datetime.date.today().strftime('%Y'))
year_joined = int(input('Please enter the year you joined: '))

year_due = year_joined + 1

year_difference = current_year - year_due

The month difference does not take into accound the difference in years. I have tried a few solutions to ignore an input for month difference and put 12 months in for each year. I need the month difference to be exact. Any ideas? I'm stumped.

Upvotes: 0

Views: 71

Answers (1)

sapht
sapht

Reputation: 2829

I'm not sure what you mean by 'put months to 0' but you can add year_difference * 12 to month_difference to map March 2017 to Jan 2016 as described.

Upvotes: 1

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