Petit Jurors: A typical jury day begins at 9:00 a.m. and ends at 5:00 p.m. However, your schedule will depend on the court's schedule. When you first report for a one-time orientation, you will be asked to report about an hour earlier, around 8:00 a.m. Grand Jurors: A typical grand jury day begins at 9:30 a.m. and ends before 5:00 p.m. There are breaks throughout the day and jurors are permitted to leave the courthouse during their lunch break.