@ ExpatSoul
In Korea, there will be too many applicants (more than 2,500 I guess), so the second round will be two days i.e. Friday and Saturday. You will be put in one of these days, if you are called back.
Final Interview will be on Sunday onwards. (you can choose your day.)
Normally, the second round will take approximately half day. Then, if it begins at 8 a.m., it will be done at 2 p.m., but if it starts at 2 p.m., you will finish at 7 p.m.