diff --git a/24 hr.py b/24 hr.py
new file mode 100644
index 0000000..d50f1e0
--- /dev/null
+++ b/24 hr.py	
@@ -0,0 +1,19 @@
+
+def convert24(str1): 
+      
+    if str1[-2:] == "AM" and str1[:2] == "12": 
+        return "00" + str1[2:-2] 
+          
+        
+    elif str1[-2:] == "AM": 
+        return str1[:-2] 
+        elif str1[-2:] == "PM" and str1[:2] == "12": 
+        return str1[:-2] 
+          
+    else: 
+      
+        return str(int(str1[:2]) + 12) + str1[2:8] 
+           
+
+str1=input("enter time")
+print(convert24("str1"))