Assalam o Alaikum ..

I have a question regarding the psychological test .. HOw much time do candidates have for psychological test from the date they receive a notice for test .. ?
For example if a person is abroad and he receives a notice for psychological test at home in Pakistan or through FPSC website, will he have enough time to catch a flight and reach Pakistan for the test .. Say like, 7 days or so .. ?
Please also let me know about the gap between psychological test and Interview .. I read somewhere that its like 15 to 20 days .. Is it so .. ?

Replies will really be appreciated ..

Regards ..