More evidence is mounting to suggest Sept. 20 will be this year’s Day of the iPhone(s). According to a new report from 9to5Mac, Verizon Wireless is restricting employee vacation days between Sept. 18 and Sept. 22 in order to have enough bodies for the upcoming release, which will allegedly include two new models, iPhone 5S and iPhone 5C. This will mark the first time Apple has ever released two completely different models on the same day in the iPhone’s history.

Similar to reports that claimed both AT&T and T-Mobile we’re also restricting vacations around the same time, it definitely seems like Verizon will be gearing up for a big flagship release. Apple release days typically demand a lot of traffic, and if the new handsets do indeed come out on that Friday (Sept. 20), each carrier will need all hands on deck through the weekend. Verizon is likely restricting vacation a few days before in order to prepare new stock—and possibly get rid of older iPhone 5 models.

In addition to Verizon’s vacation freeze, 9to5Mac also said inventory checks suggest supply of higher capacity iPhone 5 models (32GB and 64GB) are constrained at the carrier. Apple typically keeps the previous year’s iPhone model around at a lower cost, but there have been reports claiming the company could ditch the device in favor of the iPhone 5C, which could come with specs similar to the current iPhone 5.

9to5Mac suggests the 16GB iPhone 5 could stick around as an entry-level device along with the iPhone 5C while Apple pushes higher capacities of the iPhone 5S, which could go as high as 128GB. Apple will supposedly hold an event on Sept 10, so we’ll find out fairly soon. In the meantime, you can feast your eyes on what the new iPhones will look like thanks to a number of fresh leaks.