とりあえず時間が表示されるもの

 

from tkinter import *

from datetime import datetime

import time

c = Canvas(width = 700, height = 300, background = '#00ffff')

c.pack()

try:

    while True:

        now = datetime.now()

        s = '{0:0>2d}:{1:0>2d}:{2:0>2d}'.format(now.hour, now.minute, now.second)

        c.create_rectangle(0, 0, 700, 300, outline = '#808080', fill = '#808080')

        c.create_text(350, 150, text = s, font = ('Comic Sans MS', 100), fill = 'yellow')

        c.update()

        time.sleep(0.1)

except:

    pass