In Koha when you create a basket there is a basket opened date, on other pages it's called the order date, on other pages it's called the placed on date and in some places it's the creation date - they should all be consistent which ever they use.
I'll happily fix this, but would love to hear some ideas on what it should say.
Hm, in aqbasket there are 2 date fiels: creationdate and closedate.
As the order status switches to 'ordered' when you close the basket, I think order date makes sense there.
When the creationdate is displayed it should be creation date.