Add instructions for iOS's 24h

README.md

@@ -131,6 +131,10 @@ handleEndDatePicked = (date) => {
 This is more a React-Native specific question than a react-native-modal-datetime-picker one.  
 See issue [#29](https://github.com/mmazzarolo/react-native-modal-datetime-picker/issues/29) and [#106](https://github.com/mmazzarolo/react-native-modal-datetime-picker/issues/106) for some solutions.  
 
+### How to set 24 hours in iOS ?
+Since `is24Hour` is only available on Android, you can do a small hack for it by setting the app's default timezone as `en_GB`.
+To do so, edit your `AppDelegate.m` file, and add `[[UIDatePicker appearance] setLocale:[[NSLocale alloc]initWithLocaleIdentifier:@"en_GB"]];` to `application didFinishLaunchingWithOptions`
+
 ## Notes
 Remember to always set the `isVisible` prop to `false` in both the `onConfirm` and `onCancel` props (like in the example above).