ASHORTWORK
Biblical Understanding based on the Record of Scripture
YHVH created the sun and the moon and set them in the heavens, in part, to show when to observe His Festivals. The date listed on this calendar for the start of the 1st month and the 7th month is based on the first projected sighting, after sunset, of the renewing of the light of the moon.
Leviticus 23: 23-25 NKJV
Then Yehovah spoke to Moses, saying, speak to the children of Israel, saying:
In the seventh month on the first day of the month, you shall have a Sabbath-rest, a memorial of blowing of Trumpets, a holy convocation.
You shall do no customary work on it; and you shall offer an offering made by fire to the Yehovah.