If you use Chrome you can "Ctrl + Shift + C" and then click on the time to change it manually
Kek, I don't either, you don't have to have one. It's a feature built into Chrome, and probably other browsers have it too although I don't know how to do it with those
Fun fact: One of 3 other times POTUS tweeted the word "playbook" was exactly 2 years ago to the day, 9/18/2016