Clock.py

from tkinter import*
from tkinter.ttk import*

from time import strftime

root = Tk()
root.title("Clock")

def time():
  string = strftime('%H:%M:%S %p')
  label.config(text=string)
  label.after(1000, time)

label = Label(root, font=("ds-digital", 80), background = "black", foreground = "red")
label.pack(anchor='center')
time()

mainloop()