Edexcel International GCSE January 2020Watch
It is not affected by the country you live in. You either write it in January or during Summer. It would be too late for me to write it in June so I'm giving it in Jan.
Problem is I messed up on the last two six markers and somehow the first question even though I find ratios extremely easy. I think it is the stress that got to me. Also I am not doing any other exam other than Math in January.