Explore a 15-minute conference talk from the ACM CHI Conference on Human Factors in Computing Systems 2024 that investigates user perceptions of waiting times with countdowns and count-ups. Delve into experiments examining how users perceive different interval lengths in countdowns and count-ups, and discover a novel method for presenting countdowns to make users perceive wait times as shorter than actual. Learn about the applicability of these findings in realistic applications and their potential to reduce users' cognitive load during wait times. Gain valuable insights for researchers in the field of human-computer interaction and user experience design.