Can someone please help with this

I am trying to make a script that when when an order will be shipped.

For example I do not ship orders recieved after 1:00pm EST on Friday through
3:00pm EST on Monday until 5:00pm on Monday.

#1 I would like a statement to come up for orders recieved between Friday 1:
00pm and Sunday at 11:59pm EST that either that the customers order will shi
p on Monday (+ the date ie Monday May 23)unless that monday is a holiday whe
re USPS or UPS is closed then see #3.


#2 If the order is placed between the hours of 12:00 midnight and 5:00pm Mon
day through Thursday their order will ship today (+ the date) unless it is a
holiday then see #3


#3 p1 If their order is placed on a holiday before 5:00pm EST Monday through
Friday 1:00pm when USPS or UPS is closed I would like a statement to come u
p to say that the day is a holiday and that their order will be shipped on t
he next day (+ the date).

or

#3 p2 If their order is placed on a holiday when USPS or UPS is closed that
Monday I would like a statement to come up to say that because Monday is a h
oliday their order will not ship until Tursday (+ the date)

I am ok with editing code just not creating it. If you can please enter 3 da
tes for each condition I can finalize from there.