Python3.10, Text Doesn't Show On Pygame Window

Question

I am trying to make a app where you enter in the minute value then a timer pops up on a window. The timer isnt appearing. I am using python 3.10. I'm new to python so please if you can fix it, please include the source code.

import pygame
import time
import sys

pygame.init()

q = True
WIDTH = 800
HEIGHT = 600

clock = pygame.time.Clock()

myFont = pygame.font.SysFont("monospace", 35)

def countdown(t):
    t *= 60
    while t:
        min, sec = divmod(t, 60)
        timer = '{:02d}:{:02d}'.format(min, sec)
#
        screen = pygame.display.set_mode((WIDTH, HEIGHT))
        pygame.display.set_caption('PyTimerTwo,  By: ChanceMeteor515')
        screen.fill((0, 0, 0))
        text = str(timer)
        label = myFont.render(text, 1, (255, 255, 255))
        screen.blit(label, (WIDTH - 200, HEIGHT - 40))
#
    print("\nTime's Up")
    time.sleep(5400)

t = input("Enter Time In Minutes:")
countdown(int(t))

while q:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_h:
                pygame.mouse.set_visible(0)
            elif event.key == pygame.K_ESCAPE:
                sys.exit()

    clock.tick(120)
    pygame.display.update()