Apple DEP Sync Schedule to MDM Server?

I recently registered for the Apple DEP (Device Enrollment Program) for our MDM deployment. I have noticed that when I add devices to the DEP portal early morning (PST), they show up in our MaaS360 dashboard pretty quickly. However, adding orders/devices later in the day, they don't get synched until next day?

Anyone know what the sync schedule for DEP to MDM servers is?

Thank you in advance.