This sound comes from the time card narration style used in SpongeBob SquarePants, the animated television series that popularized labels like "one hour later" for comedic scene transitions. Online, the short voice clip spread through meme videos, reaction edits, and short-form posts because it instantly communicates an exaggerated passage of time. It is still widely used because the joke is universal: everyone understands the setup of waiting far too long. SpongeBob clips such as the spongebob sad song often stay popular for the same reason.