Were they granted the ability to manipulate time and space, we’re fairly certain that most world leaders would choose to go back in time in order to benefit their own country somehow, replaying disastrous moments in their history and righting wrongs that would later cost them dearly. (One can only imagine a world in which the likes of Katie Hopkins and Donald Trump were never put in front of a camera…)
But today, totalitarian dictatorship North Korea declared that it would be turning the clock back by just 30 minutes, thus establishing “Pyongyang Time”, in order to mark its independence from the “wicked Japanese imperialists” who meddled with their clocks to begin with.