refactoring: changed a var to a more appropriate name

src/convert_time.c

@@ -16,8 +16,8 @@ double converter_min_to_sec(double min){
 
 // Converts Hours to Minutes
 double converter_hour_to_min(double hour){
-    double min = hour * 60;
-    return min;
+    double mins = hour * 60;
+    return mins;
 }
 
 // Converts Minutes To Hours