15:27
MAYBE
Checking your clock…
In Edmonton the local lexicon for a late ping is not 'async' — it is a flare. Winter dark at 16:00. A 17:30 ping already feels like night even when the clock says otherwise. The polite window around Downtown Edmonton is 08:00–17:00 local. Winter daylight collapses early, so an afternoon ping can already feel like night. Ping their late morning unless you already share an on-call rota. Edmonton still shifts with daylight saving (UTC−7 in January, UTC−6 in July).
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Edmonton is 15:27. Verdict: MAYBE. Check before you ping → https://asleep.today/edmonton