Hi!
I am not from South Africa, but I do love it there! I was travelling in Africa and South Africa most of December and January. I was not day trading then, as I am just starting. I was doing a lot of swing trading at the time. The time zone was so much better for me! I live in Vancouver and trading here requires being up very early. The market opens in SA at 14:30. I don't think you will have any problems. :)
Best,
Corey