I had two, the first one took most of the day; went to interview with the judge and jury and it prob would have been long as it was a medical malpractice lawsuit. I told them I probably couldn’t be biased as I recently recovered from a major surgery so I was dismissed (2015). Second time was like after Covid and it was a Friday. Before noon we were all sent home. I didn’t mind as my employers at the time had a jury duty paid time off option. First time could not bring cell phone in, second time no restriction. Just bring water, snack and book.