when is the last bus to macao from guangzhou.And which bus goes to macao.

If you take a bus from Tianhe Bus Station, the last bus leaves around 19:00 and it takes you to Banco da China, Macau around 21:30.

If you take a bus at Yuexiunan Bus Station, the last bus leaves at 19:50. It takes you to Zhuhai Gongbei border. U need to go through the immigration to Macau then.