[sopo]

could offset by half hou year round like St. Johns New https://www.timeanddate.com/worldclock/canada/st-johns

[scrabblehack]

I’ve thought Newfoundland should be on the hour:
52.5 - 67.5: Atlantic
67.5 - 82.5: Eastern
82.5 - 97.5: Central
97.5 - 112.5: Mountain
112.5 - 127.5: Pacific

The Michigan mitten and Tennessee would shift to Central time...