A productive day starts with a hearty breakfast—and for most of us, that sometimes means fast food. We can claim to hate it all we want, but there’s no denying the allure of a tasty bacon, egg, and cheese Crossan’wich served with a side of toasty hash browns. If your rise and shine is somewhat sluggish some mornings, you may wonder what time can you order breakfast until at Burger King? Well, Burger King typically starts serving breakfast at 6 a.m. and serves its morning menu until 10:30 sharp at which time, lunch promptly starts. (The exceptions to this rule are the 24/7 locations, which may start breakfast earlier than that.) Find a Burger King location near you. If you’ve ever wondered why fast food joints just don’t serve breakfast all day long, it has to do with griddle temperatures. Lunch menu items, like those sizzling burgers, require higher griddle…