Calculate and print out time left on earth

timeLeft.py

import time
from datetime import date

#def count_time_left():
today =date.today()
while True:
    
    yourMonth = int(input("Enter your Month of birth MM: "))
    if yourMonth >12 or yourMonth < 0:
        print('please try MM again!')
        continue
    else:
        while True:
            yourDay = int(input("Enter your Day of birth DD: "))    
            if (yourMonth == 2 and yourDay >28) or yourDay > 31 or yourDay <0:
                print('please try DD again!')
                continue
            else:
                while True:
                    yourYear = int(input("Enter your Year of birth YYYY: "))   
                    if yourYear > int(today.year):
                        print('please try YYYY again!')
                        continue
                    else:
                        break
                break
        break

yourBD = date(yourYear, yourMonth, yourDay)
today =date.today()
isoToday = date.isoformat(today)
print("Today is: ",isoToday)
print("If you live 60 years or {} days of your lifespan".format(60*365))
dayLeft = date(yourYear + 60, yourMonth, yourDay) - today
dayLeft = int(dayLeft.days)
print("The days you have left on earth is:", dayLeft,"days")
print("You have lived",21900 - dayLeft,"days")

def print_table(data, cols, wide):
    '''Prints formatted data on columns of given width.'''
    n, r = divmod(len(data), cols)
    pat = '{{:{}}}'.format(wide)
    line = '\n'.join(pat * cols for _ in range(n))
    last_line = pat * r
    print(line.format(*data))
    print(last_line.format(*data[n*cols:]))

data1 = ["X" for i in range(int(round((21900 - dayLeft)/10)))]
data = ["." for i in range(int(dayLeft/10))]

data1.extend(data)
print_table(data1,73,1)
print('Momento Mori, mate!')