I am setting up a sale with salemaker and use banners to advertise it on the site home page.

The sale expires exactly on the "expires on" date set in the admin. However, the banners expire a day later than the "expires on" date set in the admin.

As these 2 don't coincide, I have been setting the banner to expire a day earlier so far but was wondering if this was normal behavior?

Please advise...