In 1851, England designated the Prime Meridian (0 degrees longitude) as the meridian running through Greenwich Observatory. They were the dominant seafaring nation in that era, had colonies around the globe, were using state-of-the-art mechanical clocks, and were scientifically qualified to establish a standard. You've heard the saying "The sun never sets on the British Empire." That was once true. England had colonies all around the globe, so it was always "daytime" somewhere in the British Empire. Britain had clout.
The second arc of Batman Confidential (#7-12) re-imagines the Joker as a gifted criminal and abandons the Red Hood identity, also called Jack, who is nearly suicidal due to boredom with his "job". He talks to a waitress, Harleen Quinzel , who convinces him to find something to live for. Jack becomes obsessed with Batman after he breaks up one of his jobs, leading Jack to attract Batman's attention at a ball. Jack injures Lorna Shore (whom Bruce Wayne is dating), leading Batman to disfigure his face with a batarang. Jack escapes and Batman gives Jack's information to mobsters, who torture Jack in a chemical plant. Jack kills several of his assailants after escaping, but falls into an empty vat as wild gunfire punctures the chemical tanks above him, and the resultant flood of antidepressant chemicals alters his appearance to that of a clown, completing his transformation into the Joker.