Off-topic, but do you really have to post those gif's every time you make a new thread? It's really annoying even more annoying than your lack of paragraph spacing.
now On-topic, if you're going to plan to use a specific timezone, you should at-least poll, and try to get a significant number of votes, roughly at-least half your expected player base, but for sizeable number preferably 1k+, with trying to have at-least three-four different timezone, i.e Vancouver, London, New York and somewhere in South East Asia, then from the data, you can choose an intersect, and based on the highest density, you favour the intersect of that country.
example included, the south-east Asia, location in the example is in the Philippines.