I think it's interesting that the first verse in that chapter is Paul instructing his followers to:
1Co 11:1 Be imitators of me, even as I also am of Christ.
What is the deadline you're talking about?
Thanks for the reply, below is the deadline for observing this tradition. It is my belief that this along with water baptism was meant to strengthen those at the time. Their situation was far different than anything we are likely to experience, "striving to blood" as Paul said. Try proving water is for us today, "prove all things". This fact alone makes the scriptures regarding the early church complicated to us 2000 years after the fact. Many doctrines have failed God by misunderstanding this, applying things to this age that weren't meant to be and exiling things to that time that are for us today. There is probably a sect somewhere that believes they possess Paul's "cloak and parchments" and are awaiting his return to retrieve them.
till he come.