[ORAS] Question about s-hunt legendary beasts

[geetry]

Hi, quick question

I'd like to shiny hunt Raikou on ORAS. However, the times of the hour it appears bother me a little.

If I catch Entei and Suicune, will Raikou appear all the time or still for twenty minutes every hour? Would just annoy me to SR for only 20 minutes every hour.