The snail clock is SpongeBob's house clock. It appears in the episodes "Gary Takes a Bath," "Procrastination," and "Earworm."
It is designed to look like Gary, having a shell and eye stalks just like him. It also includes teeth and a tail.
Role in series
"Gary Takes a Bath"
SpongeBob looks at the clock and declares that it is time to give Gary a bath.
After SpongeBob falls asleep, the snail clock grows a mouth and says "Time's up, SpongeBob!" in his dream.
SpongeBob looks at it and realizes it is time for him to go to bed.