How long do I need in Xian to see Teracotta Warriors and Giant Wild Goose Pagoda?

3-4 hours are needed for the museum; only for the pagoda, around an hour is needed. But if you also wanna wander around the squares and surroundings, 2-3 hours is sufficient.

BTW, the terracotta museum is about 23 miles from the xian downtown area, and the bus ride may take about 1 hour.