Fireworks Show Begins at approximately 9:30 PM Fort Worth’s Fourth features the largest fireworks show in North Texas on the Fourth of July. Panther Island Pavilion will be open for viewing of the show this year. Gates open at 6pm and the fireworks show starts at 9:30pm. The public is encouraged to arrive early to find a spot to spread out along the banks of the Trinity River to watch the show. Chairs and blankets are allowed.