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How to check if a date is between two dates in python?
EDIT1: In excel, the date that I am reading is 7/13/2018 for example.
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between() to Two Dates. You can use pandas. Series. between() method to select DataFrame rows between two dates.
To check if a date is between two dates:Use the Date() constructor to convert the dates to Date objects. Check if the date is greater than the start date and less than the end date. If both conditions are met, the date is between the two dates.
To get the difference between two dates, subtract date2 from date1. A result is a timedelta object. The timedelta represents a duration which is the difference between two dates, time, or datetime instances, to the microsecond resolution. To get a result in seconds, use the timedelta.seconds attribute
Approach 1: Use .split () method to split the date on “/” to get the day, month and year in an array. The we have to construct the date from the array obtained in previous step for that we will use the new Date () constructor . Because this method returns the number of seconds from 1 Jan 1970, So it becomes easy to compare the dates.
Let’s see how to compare dates with the help of datetime module using Python. One of the best ways to sort a group of dates is to store them into a list and apply sort () method. This will sort all the dates which are available in the list. One can store the date class objects into the list using append () method.
Use the strptime (date_str, format) function to convert a date string into a datetime object as per the corresponding format. The format codes are standard directives for mentioning the format of the string for parsing. For example, the %Y/%m/%d format codes are for yyyy-mm-dd To get the difference between two dates, subtract date2 from date1.
You can convert the date so it can be easily compared in Python. Dates 1 and 2 are the converted dates, input_1 and input_2 are the two inputs from Excel. The second parameter passed in is the format in which the date is passed in.
date_1 = datetime.strptime(input_1, '%d/%m/%Y')
date_2 = datetime.strptime(input_2, '%d/%m/%Y')
date_3 = date(2017, 7, 19)
Now that you have the dates in the right format, I will check if date_3 falls within date_1 and date_2. This will return a Boolean.
date_1 < date_3 < date_2
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