I think 1/12/17 was the date Biden went to Ukraine to lock down the bribes before Trump took office the next week.
Quick search led me to the afternoon that Barry honored Joe with the Medal of Freedom in the WH—Jan 12, 2017.
UPDATE: Jan 12, 2017 - FOR IMMEDIATE RELEASE On January 15-18, 2017, the Vice President will travel to Kyiv, Ukraine and Davos, Switzerland.
The White House
Office of the Vice President
For Immediate Release January 17, 2017
Remarks by Vice President Joe Biden With Ukrainian President Petro Poroshenko
Bankova
Kyiv, Ukraine
THE VICE PRESIDENT: Mr. President, I may have to call you once every couple weeks just to hear your voice. (Laughter.) This has been going on a long time.
Good afternoon, everyone. It’s a great, pleasure to be once more here in Kyiv to reaffirm the depth of the partnership between our two peoples. This is my sixth visit to Ukraine as Vice President and my fifth in the year since the Revolution of Dignity on the Maidan, which was an astounding thing to witness when so many Ukrainian patriots stood up and demanded a future that this country has been too long denied.....