DETROIT (WWJ) – Make your calendar — one of the sweetest days of the year is coming up!

(Credit: Dairy Queen)

(Credit: Dairy Queen)

Dairy Queen is holding its annual Free Cone Day on Tuesday, March 20 to locally benefit Beaumont Children’s Hospital.

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Participating shops will offer every customer a FREE small vanilla soft-serve cone with DQ’s signature curl on top.

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To find a participating location, click here.

For every cone Dairy Queen serves, guests are invited to make a donation. All money raised will stay in Michigan.

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Last year, an average of 1,330 free cones were served at each store.