A question raised by a co-worker.
While I, like most traditionally learned (classroom raised) Japanese students believe that おはようis a phrase restricted to use in the morning, my co-worker says you use おはよう whenever you see someone for the first time that day. At least in a work setting.
The only other evidence I found on this matter was on reddit…so I am seeking out the wise folks here to see what y’all have to say about this matter.
What say you?