So I worked all day yesterday (I run with sylestia time) and I just got home not too long ago. I missed yesterdays advent calender gift because when I was on break I noticed my phone was dead and I had no way of clicking yesterday's gift. I don't suppose there is a way I can snatch on to it yet? :/

nah, it's the same here as it is on most sites, you can only claim the current day's prize. i've gotten into the habit of logging in while i'm getting dressed in the morning, if that helps for future workdays for you?