Clock

import tkinter as tk
import time

def update_time():
    current_time = time.strftime("%H:%M:%S")
    clock_label.config(text=current_time)
    clock_label.after(1000, update_time)

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

clock_label = tk.Label(root, font=("times", 40, "bold"), bg="white")
clock_label.pack(fill="both", expand=True)

update_time()
root.mainloop()