Numbers and mathematics are awesome!  I have always been intriguied by what can be done with numbers, especially using Algebraic formulas.  God created the material world, and this includes all methods of measuring it: time, distance, movement, size, etc.  One thing we must keep in mind though is that God Himself is Spirit.....Infinite Spirit.  He is infinite, and therefore not limited by the boundaries of the material world.  Try as we might, we simply cannot measure God.  Or, more generally speaking, we cannot define Him.  Any "understanding" we may have of God is the result of erroneous conclusions we have drawn with our finite minds for our intellectual convenience.  You cannot define what is infinite.  God is infinitely more than anyone has ever perceived Him to be.  And He is certainly not bound, limited, or controlled by that which He created.

Numbers are subject to the existence of the material world.  Man discovered numbers as a way of measuring and understanding the material world.  Time is one thing that we use numbers to measure.  Thats fine, and appropriate!  God has used numbers to guide and instruct us.  But one thing we must remember is that numbers are finite.  Any conclusions drawn through numerical calculations are conclusions based on the material world.  God used specific numbers in the Bible, and He meant for those numbers to be taken literally.  But He did not intend for them to be used by humans to limit or control Him.  When God says it rained for 40 days and 40 nights, we can be sure that 40 is the literal number He wants us to use to measure that event.   But whether it was literal days or weeks or years is something we would have to understand the Biblical languages in order to know.  When He says that the time of Jacob's trouble (the Tribulation) will be 7 weeks, we know that the number 7 is an exact amount, but is the term "weeks" literal?  In this case, we find that "weeks" = "years" because elsewhere we find the number 1260 used to describe half of this "7."  And the only way 1260 is half of 7 is if 1260 refers to days, and 7 refers to years.

Numbers are for our use as humans, but they are not intended to be used as a method of defining God.  Rather, they are intended to demonstrate to us the awesomeness of God's infinity!  Man has come up with some mind-boggling equations to explain things in the material and physical world.  But as of yet, no numerical calculations have come anywhere close to capturing God's infinite essence.  As for God's "timing," if He reveals to us a specific number, then He intends for that number to be taken literally (although the terms "days," " weeks," "years," etc. could be literal or figurative.)  There are certain events that He has assigned specific numbers to for specific time measurements.  But there are other events, such as the Rapture, that He has not revealed a specific numerical time for.  We can play with numbers all we want.  And our calculations may be very impressive.  But there is no possible way that our use of numbers can ever capture the Truth.  If our complicated calculations bring us to April 26th as the "most likely" time of the Rapture, and the Rapture does indeed happen on April 26th, no one can say that it HAD to happen then just because their math happened to be correct.  God appointed an exact time for the Rapture before He even created time!!  In other words, if the Rapture happens on April 26th, then its because God assigned April 26th to the Rapture, not the Rapture to April 26th!!  And the assignment was made before we were created.  So, how can we say that God has to Rapture the Church on a date that we calculate.  In God's infinite mind, the Rapture has already happened.....we are just waiting to find out the date in our future.  If He wants to reveal the time to us ahead of time, then He will and we will know.  But if not, we can be assured that our numerical calculations will never lead us to knowledge of the appointed time.  And that's because, unless He reveals the time to us, we can't know the time until after it happens.