PyDroid Pygame - Font Render

import pygame_sdl2
pygame_sdl2.import_as_pygame()
import pygame
import time

# define some colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)

pygame.init()
pygame.font.init()
DS = pygame.display.set_mode((640, 480))
CLOCK = pygame.time.Clock()

FPS = 30

W = DS.get_width()
H = DS.get_height()
HW, HH = int(W / 2), int(H / 2)

FONT = pygame.font.SysFont("'", 75)

start = time.time()

while True:
    DS.fill(BLACK)

    t = str(int(time.time() - start))
    text = FONT.render(t, True, WHITE)
    DS.blit(text, (0, 0))

    pygame.display.update()
    CLOCK.tick()