How to have a timer on screen unity code example

Example 1: how to make a screen in python

import pygame
pygame.init()

sh = int(500)
sw = int(500)
win = pygame.display.set_mode((sh, sw))

run = True
while run:
    pygame.time.delay(100)
	for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

Example 2: how to make a screen with pygame

import pygame

# The background color can be whatever you want
background_colour = (255,255,255)
(width, height) = (300, 200)
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Tutorial 1')
screen.fill(background_colour)
pygame.display.flip()
running = True
while running:
  for event in pygame.event.get():
    if event.type == pygame.QUIT:
      running = False