Exodus 16:13 uses the general term for "evening".  The English KJV has the term <at
even> which means toward evening.  If Moses intended the evening of sunset, then <at
even> is still "between the two evenings" – toward sunset.  The word <evening> in verse
13 is a reference to "between the evenings" in verse 12.  The Hebrew prefix translated
as <at> in the KJV is translated as <in> in the RSV, YLT, and other translations.  Either
translation is permissible; we must rely on the context for the correct meaning of the
term.  There is no misunderstanding which evening Exodus 16:13 references, because
verse 12, in the Hebrew, establishes which evening the Israelites would eat flesh, by using
the specific term of “between the evenings”.  The correct time for the coming of the quail
is the evening of noon, afternoon, or "between the two evenings".  Any time you see the
terms <at even> or <at evening> they mean <toward evening> or “between the two

The Hebrew term can be translated either as <at even> or <in the evening>.  Either term,
<at even – toward sunset> or <in the evening> would mean “between the evenings” as
established specifically in verse 12.  In either case, the quail came sometime between noon
and sunset.  <In the evening> is probably the more correct term, as verse 12 points out
that they would eat flesh “between the two evenings”.  <In the evening> would allow the
quail to arrive just after noon more so than <at even>.  The reasoning here is that “in the
evening” would be a direct reference to “between the evenings” – an interval of time -
while “at even” would seem closer toward the evening of sunset.  Logically one would not
use a reference to “between the evenings” for verse 12 and “toward sunset” for verse 13
to refer to the one event.  In other words, “in the evening” would be more congruous with
“between the evenings” and a contradiction is not permissible.  If the quail came after
sunset, the Israelites would have been out in the dark trying to catch quail and prepare
them to eat.  When camping, with the absence of electricity, one does not wait until just
before dark to prepare and eat his evening meal.