There is direct bus from the airport to Zhuji City. It departs at 10:00, 11:30, 13:20, 14:50, 16:40, 18:30, and 21:00. If you miss the bus time, you cam take the airport shuttle bus to Hangzhou Railway Station, then take bullet train from Hangzhou to Zhuji. It only takes about 30-40 minutes by the bullet train. You may see the time throught China Train Schedule(https://www.travelchinaguide.com/china-trains/) .