Usually issued hours just before leaving office.
On January 20, 2001, he pardoned 140 people in the final hours of his presidency.
Clinton Pardons
https://en.wikipedia.org/wiki/List_of_people_pardoned_by_Bill_Clinton
GW Bush Pardons
https://en.wikipedia.org/wiki/List_of_people_pardoned_by_George_W._Bush
Wow, a few hours, that is pretty hit and run, right up Obummers alley. I fully expect him to pardon terrorists just like he’s been doing with Gitmo the past 8 years, but I think the big one he is going to pardon is going to be Khalid Sheik Mohammed or the traitors Chelsea Manning and Bowe Bergdahl if not all of them. The guy is a traitor so it stands to reason he will pardon enemies of this country. I don’t think he will pardon Hillary because that would mean he endorsed a criminal for POTUS and I dont think he likes her. I think he can pardon her even though she hasn’t been indicted like Ford pardoned Nixon.