To celebrate the day, plenty of restaurants, shops and more are doing celebrations across the city, offering discounts on items, food, drinks and more.

Here's a look at where to find 313 Day deals in Detroit Friday, March 13, 2026.

March 13th — known locally as 313 Day — is Detroit’s unofficial holiday celebrating the city’s area code, culture, and community pride.

The Detroit Pistons will host its annual Pistons 313 Day Celebration presented by Ally, a series of team-themed festivities that celebrate 313 Day, a Detroit area code-inspired special day, on Friday, ...

In 1701, Antoine de la Mothe Cadillac founded the beginnings of modern-day Detroit — area code 313. Motor City can't throw a big celebration because of its bankruptcy, but there will be some parties.