Time suggestion to go to railway station at shenzen, I plan to hongkong, it is every day ?

Rail service is unavailable from Shenzhen to Hongkong, but you can take a ferry or subway conveniently. Or you can take a bus or go by rail from Shenzhen to Guangzhou, then continue your trip to Hongkong. There are many trains between Guangzhou and Hongkong and it runs every day.