Ontario, please be next!
https://www.cbc.ca/news/canada/british-columbia/b-c-adopting-year-round-daylight-time-9.7111657

CBC
Reactions mixed as B.C. to end time changes, adopt year-round daylight time | CBC NewsReactions range from applause to concern as March 8 will be the last time most British Columbians have to change their clocks, B.C. Premier David Eby announced Monday.
Could also be true. But hey, if it's so important shouldn't Bay Street just wake up an hour earlier rather than making it everybody else's problem?
What I find weird here is doing away with DST, like getting rid of the penny, is a libertarian obsession that nonetheless has broad public support. And yet it always seems too difficult to pull off.
their schedules are more different than alike. Different holidays. Different pre-market and post-market hours. Many different rules.
Some equities trade on half a dozen exchanges. Around the world.
There's no need to close markets on any particular timing now. They used to be closed on Fridays so they'd have 3 full days to do paper reconciliation. Now everything is in realtime.