The DateFormatter help in the conversion between dates and textual representations. For example :- If you are working on the project and you are dealing with date or time to show in your app screen, the date or time format you receive is different from the format you want to display. Let say you got the date in "2017-11-15" and you need to display on screen as "15 November, 2017" so DateFormatter help us for conversion in the format as we want to display. Now let's see some more example for date and time conversion. Let