How to tell if a date is between two other dates?

If you convert all your dates to datetime.date, you can write the following:

if start <= date <= end:
    print("in between")
else:
    print("No!")

As you are still not satisfied, I have another answer for you. Without using datetime and year.

It just uses built-in tuples and comparing them:

d1 = (3, 28)
d2 = (3, 31)
d3 = (4, 2)
if d1 < d2 < d3:
    print("BETWEEN!")
else:
    print("NOT!")

You can create tuple like these easily:

day = 16
month = 4
d = (month, day)