Any day is a great day to start reading your Bible, but people often start a new plan in a new year. Last year, I spent several days highlighting the strengths and weaknesses of various programs. If you look at the sidebar over there ----------> and click on "Bible Study" it will take you to all of the programs that I recommended.
Here is a brief rundown.
The One Year Bible--This is a fine option. You know exactly what to read each day. You need a special Bible though and it isn't organized like a regular Bible, a distinctive drawback, as far as I am concerned.
M'Cheyne--You will be reading sections from 4 different places each day and if you follow it, you will go through the Old Testament once and the New Testament and Psalms twice.
John MacArthur approach--From what I have heard, John MacArthur knows the Bible as well or better than any man I have ever heard. His method is to read through the Old Testament straight through, a few chapters a day, and then start over again when you reach the end. The New Testament is handled a little differently. You break each book into sections of chapters (4-6) and read each section once a day for a whole month. So, for example, you would read Romans 1-5 every day for a month. Then the next month you might read Romans 6-11 and finally, in the third month, you would read Romans 12-16.
Meditative plan--This is a great plan from my good friend Eric Johnson, a Christian psychologist and a professor at the Southern Baptist Theological Seminary, which encourages meditating more deeply upon God's word.
Grant Horner approach--This is my Bible plan. I have been doing it since September 2009. In that time, I have read each book at least 3 times. Some sections I have read much more often. For example, I have read Proverbs 28 times, Acts and Romans 20 times, and the New Testament epistles 14 times each.
If you cannot find anything in the list I have provided, try here. Ligonier has another dozen approaches or so. Pick one and read. It will be time well invested.
I have stored up your word in my heart, that I might not sin against you.--Psalm 119:11