Orders placed during the day usually go to the post office between 4-5 PM. And orders that come in after that trip to the post office just ship the next day.
Sometimes, like when we have a new product release and things are a bit loco… there’s multiple trips to the post office per day.
If you pick a shipping option other than First Class mail, you’ll get a tracking number in your order completion email. Of course, if you have an account you can also look that information up from your account page.