Perfecting your wedding timeline will ensure that your day runs smoothly and smoothly from one event to the next. Here's how to make a foolproof wedding day schedule. The key to a successful wedding day timeline is planning ahead of time. You'll be able to keep everything and everyone on track when the big day arrives if you break down your entire wedding day into an organized and detailed timeline. A meticulously planned wedding day timeline will reduce stress and confusion by keeping everyone on the same page, from your bridesmaids to your glam squad to your photographer.