diff --git a/projects/create a simple stopwatch/README.md b/projects/create a simple stopwatch/README.md
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+## create a simple stopwatch
+
+### usage
+
+python stopwatch.py
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diff --git a/projects/create a simple stopwatch/stopwatch.py b/projects/create a simple stopwatch/stopwatch.py
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+import tkinter as Tkinter
+from datetime import datetime
+import time
+counter = 0
+running = False
+
+
+def counter_label(label):
+    def count():
+        if running:
+            global counter
+			# To manage the intial delay. 
+            if counter == 0:
+                display = 'Ready!'
+            else:
+                tt = datetime.utcfromtimestamp(counter)
+                string = tt.strftime('%H:%M:%S')
+                display = string
+	
+            label['text'] = display
+	
+			# label.after(arg1, arg2) delays by 
+			# first argument given in milliseconds 
+			# and then calls the function given as second argument. 
+			# Generally like here we need to call the 
+			# function in which it is present repeatedly. 
+			# Delays by 1000ms=1 seconds and call count again. 
+            label.after(1000, count)
+            counter += 1
+	
+	# Triggering the start of the counter. 
+    count()
+	
+
+# start function of the stopwatch 
+def Start(label):
+    global running
+    running = True
+    counter_label(label)
+    start['state'] = 'disabled'
+    stop['state'] = 'normal'
+    reset['state'] = 'normal'
+	
+
+# Stop function of the stopwatch 
+def Stop():
+    global running
+    start['state'] = 'normal'
+    stop['state'] = 'disabled'
+    reset['state'] = 'normal'
+    running = False
+	
+
+# Reset function of the stopwatch 
+def Reset(label):
+	global counter
+	counter = 0
+	# If reset is pressed after pressing stop. 
+	if not running:
+		reset['state'] = 'disabled'
+		label['text'] = '00:00:00'
+	# If reset is pressed while the stopwatch is running. 
+	else:
+		label['text'] = '00:00:00'
+
+
+root = Tkinter.Tk()
+root.title("Stopwatch")
+
+# Fixing the window size.
+root.minsize(width=250, height=70)
+label = Tkinter.Label(root, text='Ready!', fg='black', font='Verdana 30 bold')
+label.pack()
+f = Tkinter.Frame(root)
+start = Tkinter.Button(f, text='Start', width=6, command=lambda: Start(label))
+stop = Tkinter.Button(f, text='Stop', width=6, state='disabled', command=Stop)
+reset = Tkinter.Button(f, text='Reset', width=6, state='disabled', command=lambda: Reset(label))
+f.pack(anchor='center', pady=5)
+start.pack(side='left')
+stop.pack(side='left')
+reset.pack(side='left')
+root.mainloop()