Panel: Erica Jaim Andrew Special Guest: Dave DeLong In today's episode, the iPhreak’s Gui Rambo speaks with Dave DeLong. Dave is a seven-year veteran of Apple, Dave DeLong is an accomplished iOS engineer with a passion for teaching, and hacking the Objective-C runtime. During his time at Apple, he worked on the UIKit framework, Developer Evangelism, and Apple Maps. He now works at Snap, Inc. on the Snapchat app. Dave, his family, and his large collection of bowties live near Salt Lake City, UT, where he’s an active member of the local developer community. He can often be found on Twitter teaching developers about all the ways that calendrical calculations can go wrong. In particular, we dive pretty deep on: