16:27
MAYBE
Checking your clock…
People in Oklahoma City keep office hours that look familiar on a slide and stranger in practice. The polite window around Bricktown is 08:00–17:00 local. Energy and aerospace start before 08:00. Evening pings feel like a missed handshake. Daylight is honest here; if it looks like evening, it probably is. Ping their late morning unless you already share an on-call rota. Oklahoma City still shifts with daylight saving (UTC−6 in January, UTC−5 in July).
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Oklahoma City is 16:27. Verdict: MAYBE. Check before you ping → https://asleep.today/oklahoma-city