SoftUni Clock

from tkinter import *
from tkinter.ttk import *
from time import strftime

root = Tk()
root.title('SoftUni Digital Clock')

def clock():
    tick = strftime("%H:%M:%S  %p")
    label.config(text=tick)
    label.after(1000, clock)

label = Label(root, font=('sans', 80), background='black', foreground='red')
label.pack(anchor='center')

clock()
mainloop()