Ah, the Fourth of July. A great, all-American weekend with family fun, barbecue and fireworks.

Of course, there’s also a buttload of traffic, which can put a damper on the ol' holiday bliss.

Waze, a GPS app that tracks traffic trends, released some data indicating the best times for Boston area commuters to hit the road this Independence Day.

Their finding? The best time to beat the crowds is anytime before 11 a.m. and after 1 p.m. Saturday.

Commuters will likely see the worst conditions from 3 to 5 p.m. on Friday, according to the analysis. Traffic will likely increase by 12 percent with a forecast 22 percent increase in accidents in that time period.

To make their predictions, Waze analyzed data from Independence Day last year, as well as four weeks before and after the holiday, to create a comparison baseline.

The study finds that traffic also peaks right after fireworks in cities across the country—but you already knew that.

You can read the full post on Waze’s blog.