How far is it from Jiangsu to Guangxi?

1600 km. From Wuzhou to Changshu, trains, cars and planes have to transfer to Guangzhou. Changshu has no railway station and airport. If you take a train, you have to sit in Shanghai or Suzhou from Guangzhou, and then take a bus to Changshu. The fastest train 16 hours, the slowest train 24 hours. Shanghai is close to Changshu. I wonder if there is a bus to Changshu. If yes, it will take 16 hours. It takes two hours to fly to Shanghai. If you drive by yourself, plus a stopover, it will take about 25 hours. I come from Wuzhou and have been in Jiangsu for four years.