After Thanksgiving, the kids go to the cabin. Nine minutes in, Kate is in the kitchen and looks at her phone to see if Toby has responded. The date shows October 24 and her phone is connected to WiFi.
When Kevin Kate and Randall go to the cabin Kate sends Toby a text with a pic of the cabin and it days 4:40 pm. Later the same day when Olivia and her friends come Kate is looking at her phone and it says its a bit after 11 am.
The episode is supposed to be the weekend after Thanksgiving (Which in 2016 was Thursday Nov 24th) but at the cabin Kate's phone clearly displayed the date as Monday October 24th.