The first and last bus trips of Xingtai No.20 bus are as follows:

1. Yinhe Waterfront Station: 06:30-20:30 (summer) 06:30- 19: 10 (winter).

2. Xingtai East Station: 06:30-20:30 (summer) 06:30- 19: 10 (winter).

Please note that the first and last bus times of Xingtai No.20 are June-April, June-February 06: 10-22:00, and May-September 06:30-22:00.