In Deep Work [affiliate link] (and his other works), Cal Newport has been a proponent of time blocking. He even sells a planner based on his method, which is probably the best place to learn about it. In short, he gives each hour of his day a specific task. In the happy case, this works well, but it breaks down when you get interrupted, get blocked, want to extend your time, or lose energy. He does address all of that, but that’s where I have found his method to break down for me.

Instead, I’ve been doing something my friend Joel Mazza taught me, which is based on the idea of a guiderail made up of 30 minute time blocks. Like Newport’s time blocks, there are things in your day that need to happen at a specific time, usually meetings, so those go on the guiderail in the appropriate place. After that, the system diverges in that we will build up our daily tasks and assign them an amount of time, but not a specific time on the guiderail. We just need to make sure we have a reasonable amount of work that fit in our day (and make sure to have some buffer).

Instead of letting the clock decide what we will do each half hour, we can pick based on our energy (or at least, that’s what I do). I had a half-hour before lunch, and so I am writing this post. When lunch is done, I have a lot of meetings in the afternoon, so I am doing it now, so I can be free after. Earlier today, I tackled some book editing, and I have a 12:30 accountability meeting to get back to it, so that’s why I felt free to switch.

There’s a lot more to it, but the key ideas are progress and flexibility.