Show order times of available hours only

When you click a time to pick up your order it is currently displaying every 5 minutes for every hour without respecting the stores hours.  Yes the store hours are posted in very small text above but try explaining that to the frustrated customer who wanted his order outside of those hours and didn't notice that small text.  It may not seem like a big issue but you don't know about the customer who never placed their order because of this.