Digital Clock: consolidate update loop and refresh every second

Author: Ericbutler1209

Digital Clock/main.py

@@ -7,28 +7,44 @@
 window.configure(bg="green")
 window.resizable(False, False) 
 
+use_24h = True
+
 clock_label = Label(
     window, bg="black", fg="green", font=("Arial", 30, "bold"), relief="flat"
 )
 clock_label.place(x=50, y=50)
 
-# NEW date label
+
 date_label = Label(
     window, bg="black", fg="white", font=("Arial", 14)
 )
 date_label.pack(pady=(0, 10), anchor="center")
 
 
 
+def toggle_format(_evt=None):
+    global use_24h
+    use_24h = not use_24h
+    fmt_btn.config(text="Switch to 24-hour" if not use_24h else "Switch to 12-hour")
+
+fmt_btn = Button(window, text="Switch to 12-hour", command=toggle_format)
+fmt_btn.pack(pady=(0, 8))
+window.bind("<f>", toggle_format)  # press 'f' to toggle
+
+
+
 def update_label():
-    current_time = strftime("%H: %M: %S\n %d-%m-%Y ")
-    clock_label.configure(text=current_time)
-    clock_label.after(80, update_label)
-    clock_label.pack(anchor="center")
+    
+    if use_24h:
+        time_text = strftime("%H:%M:%S")
+    else:
+        # strip leading zero in 12h mode for a cleaner look
+        time_text = strftime("%I:%M:%S %p").lstrip("0")
+    clock_label.configure(text=time_text)
+    date_label.configure(text=strftime("%A, %b %d, %Y"))
+    window.after(1000, update_label)
 
 update_label()
-window.mainloop() def update_label():
-    clock_label.configure(text=strftime("%H:%M:%S"))
-    date_label.configure(text=strftime("%A, %b %d, %Y"))
-    clock_label.after(1000, update_label)
+window.mainloop()
+