When is the official time for the start of evening (end of
afternoon)and the end of evening and the start of night?

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Request for Question Clarification by mvguy-ga on 31 Jan 2006 23:46 PST

What do you mean by "official"?

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Clarification of Question by fit_guy-ga on 01 Feb 2006 07:34 PST

U.S. weather bureau or better yet Seattle.What were you're thoughts on ---OFFICIAL?

Fit_guy --

It turns out that there are multiple definitions because we see it
differently at different latitudes and with different purposes.  Net,
it's different for pilots, seafarers and astronomers:
U.S. Naval Observatory
"Rise, Set, and Twilight Definitions"
http://aa.usno.navy.mil/faq/docs/RST_defs.html

Best regards,

Omnivorous-GA

The evening starts when you pick her up, it ends when the night starts
as the two of you arrive at your place.

I think it is Muslims who judge (traditionally) the beginning of
nighttime when you cannot distinguish a black thread from a white
thread and day begins when you can. I think that is right, I think it
is used to know when to end and begin fasting during Rhamadam (sp). I
don't know if that helps, but its just a bit of knowledge for you.