Here's A Brain Tickler For You!

This morning, I was looking through some of my old posts and a good friend of mine had posted this some time ago. Grab a cup of coffee and see if you can come up with an answer! James Banner said ... (5:14 AM) : If you have 519 sins to commit and you've already committed 143 sins and have already planned 54 more sins, and assuming all of the sins you've comitted were planned, and it takes 16 hours to plan a sin and 3 hours to commit each sin but you can only plan & commit a sin on a day with an even-numbered day, then how many days will it take to plan and commit all of these sins?