Is district jury duty the same as petit jury duty?

Yes, district jury duty typically refers to service on a petit jury, which is a type of jury that hears cases in a district court. Petit juries are responsible for determining the facts of a case in civil and criminal trials, whereas grand juries, another type of jury, are involved in deciding whether there is enough evidence to indict someone. Thus, while "district jury duty" and "petit jury duty" are closely related, they refer to the same jury service in the context of district courts.