Hi my name is Roland and want to know when traveling by high speed train from Guangzhou to hangzhou

I did a search for you. There are 8 daily bullet between Guangzhou and Hangzhou, 3 of them are night rail. The shortest trip is with G86, which takes 6 hours and 1 minute. This one leaves Guangzhou South in 8:00, and arrives at 14:01.

All information is listed below.

https://www.travelchinaguide.com/china-trains/display.aspx?tp=9&fs=Guangzhou+South&ts=Hangzhou&depDate=08%2F31%2F2015