If BTE = Twilight, then it occurs AFTER the day ends. Is that correct? If so, please consider Numbers 28:4;
The one lamb shalt thou offer in the morning, and the other lamb shalt thou offer at even ; KJV
The one lamb thou preparest in the morning, and the second lamb thou preparest between the evenings; YLT
This verse deals with the time of the evening sacrifice. It had to be offered the same day as the morning sacrifice (Numbers 28:3).
First, the historical testimony of Josephus places the evening sacrifice at "about the ninth hour" or approximately 3:00 p.m. (Antiquities 14.4.3). This agrees with his statement that the Passover lamb was sacrificed "between the ninth and the eleventh hour" (Wars 6.9.3). Two different sacrifices, both occurring at about the ninth hour and both fulfilling the command to sacrifice "between the evenings."
Secondly, we have the clear meaning of two other Hebrew words to assure us of the meaning intended. The word "one" used in verse 4 is the Hebrew word "echad" which can also mean "first" as in
Numbers 29:1 and many other texts.
Numbers 29:1a - "And in the seventh month, on the
first day of the month, ye shall have an holy convocation;"
More importantly is the Hebrew word translated "other" in verse 8. It is "sheniy" meaning "double ie: second," according to Strong's Concordance. "Sheniy" is the most common Hebrew word for "second." If the "other" lamb, or more correctly, the "second" lamb, were sacrificed
after sunset (during twilight) it would not have been sacrificed on the same day as the first lamb. Both lambs had to be sacrificed the same day, the first one in the morning and the second one between the evenings or late in the day, but
before sunset.