Download the IFTTT app to access the Note widget on your device. Then all you have to do is launch the widget and enter a description like "Meeting with Jonathan at 3:30 on June 10th" and the event will be created on your calendar with the correct date and time. The more specific your description, the better! For more info on widgets: https://ifttt.com/help/applets-with-widgets

This trigger fires every time you submit any new note.

This action creates a new event in the calendar you specify.

Quickly create events in iOS Calendar