The Last Collection Time Postbox Dartford Station from Monday to Friday takes place at 18:15. On Saturdays this Postbox is emptied at 12:oo noon. There are no Sunday collections from Dartford postboxes. The collections from all other Postboxes in Central Dartford are similar (30 minutes difference). On Saturdays the collection times from other postboxes in Dartford differ significantly. Check related posts listed below for more information. Click on the following link to read about Dartford Post Box Latest Collection.