March 6 is the 65th day of the year (66th in leap years) in the Gregorian calendar. There are 300 days remaining.
- 1957: Eddie Deezen, guest star in the extended version of Truth or Square and voice of one of the Seagulls in The SpongeBob Movie: Sponge Out of Water, was born.
- 2001: "Grandma's Kisses" and "Squidville" premiered.
- 2008: "Suction Cup Symphony" premiered.
- 2017: The "current" date of "SB-129".
- 4017: The date of SB-129 in Future Bikini Bottom.