The shipment timers in the game are strange. Each one lasts for 6 hours, but then restarts immediately only if you are logged into the game. If you aren't, it starts the next time you log in. This means you can normally only get 3 shipments per day unless you want this game to start interrupting your sleep (or you naturally sleep less than 6 hours, I guess.)
There's a trick to get around this, however.
Let's say you sleep between 11 pm and 7 am. Tomorrow morning, log in at 9 am. Keep the game logged in while you are doing other things and it will "roll over" at 3 pm, and then again at 9 pm, giving you 3 shipments.
Now, go to bed and leave the game logged in. It should roll over automatically again at 3 am. As long as you get back to the game when you wake up before 9 am, you can grab the 4th shipment before the next timer rolls over again.
Eventually the change time will drift, and we can't always have the game running on our phones, but this should help you get a bit more gear or farm characters a bit more quickly (especially if you have tokens saved up.)
Quit 7/14/16. Best of luck to all of you.