In a mixing bowl, combine graham cracker crumbs, sugar, and melted butter.

Press the mixture into the bottom of a springform pan.

In a separate bowl, beat the cream cheese until smooth.

Add sour cream, powdered sugar, lime juice, and lime zest; mix until well combined.

Fold in the whipped cream gently until incorporated.

Pour the filling over the crust in the springform pan.

Refrigerate for at least 4 hours or until set.