Everyone starts from the exact same moment.
Time conversion is tough! I display my local time, Pacifica time, UTC time on my clock app World clock page.
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Wait I don't have to wait lol??
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He probably got stuck in black hole. So he is probably behind
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Someone give this user a medal. They gets it!
They understand that events starts in either UTC or PDT so they added those time zones to their phone/computer so they are always on point no matter what time zone Niantic chooses to announce the event in.