It seems the Entry Object doesn’t store the date the entry was submitted (https://docs.gravityforms.com/entry-object/)? This seems like very useful information…Especially as a merge tag if a receipt/notification is later re-sent.
From the entry object page https://docs.gravityforms.com/entry-object/#usage :
rgar( $entry, 'date_created' ); // returns the entry date
Are you looking for something different than that?
@chrishajer, date_created is perfect unless one is using the Partial Entries Add On. With the Partial Entries Add On, I believe date_created is more accurately date_started and there is no record of date_submitted / date_completed.
Unless I am misunderstanding something?