Every autumn the same small dilemma arrives: next year's planner. You stand in front of two nearly identical books and the only difference is whether the dates are printed in. It sounds trivial. It is not. The choice between a dated vs undated planner decides what your planner looks like in April, and April is where most planners go to die. Here is an honest comparison from people who make both.
What is the difference?
A dated planner has the days and weeks printed for you. Monday 4 January is already written at the top of the page. You open it and start.
An undated planner has the same pages with the dates left blank. You write in the date of the Monday you begin, and every week after that follows on.
That is the whole difference. The layout, the goal pages and the reviews can be identical. Ours are.
The case for a dated planner
- It removes one small job. Writing dates every week sounds easy, and it is, but it is also one more thing between you and planning.
- It keeps you honest about time. When the dates are printed, you can see exactly how much of the year has gone. That can be motivating.
- It feels like a fresh start. There is something lovely about opening a book that begins on the first week of January, ready to go.
- Calendars and events line up. Holidays, birthdays and month pages are already in the right places.
The case for an undated planner
- You start whenever you are ready. March, June, the day after a birthday or the first day of a new job. Readiness does not arrive on 1 January.
- Skipped weeks cost nothing. Miss a fortnight and the next page is simply the next week. No guilt, no blank pages glaring at you.
- It lasts exactly as long as you use it. A year of weeks is a year of weeks, however long it takes you to fill them.
- It suits irregular lives. Shift workers, students, new parents and anyone whose year has gaps in it.
The honest problem with dated planners
Here is the thing nobody says in the shop. The most common reason people abandon a planner is not that they stop needing it. It is that they miss two weeks, open it again, and see those two empty weeks staring back. It feels like failure, so they close it. With a dated book, a slow patch leaves a visible scar. With an undated one, it leaves nothing.
If you have a drawer of planners that are beautifully filled in until February, the undated edition is probably for you.
The honest problem with undated planners
Undated planners need you to show up and write the date. For some people, that small act is a nice ritual. For others it is exactly the kind of friction that makes the book stay shut. And without printed dates, it is easier to lose track of the month you are in, unless the planner has month pages to anchor you.
Which one should you choose?
Choose a dated planner if:
- you want to start in January, and you usually do;
- you like opening a book that is ready without any setup;
- you plan around school terms, bills or appointments that follow the calendar.
Choose an undated planner if:
- you are buying it after January has already started;
- you have a history of skipped weeks;
- your schedule changes with shifts, travel, a new baby or exams;
- you would rather start the day you feel ready than the day the calendar says.
If you are still unsure, ask yourself one question: what did my last planner look like in April? The answer usually decides it.
Our two editions
We make The Life I'm Building in both versions, and they share everything but the dates: the vision board, the wheel of life, the ikigai page, the 9 grid goal chart, eight goal ladders, monthly and quarterly reviews and the weekly spreads.
- The 2027 dated edition has 53 printed Monday-start weeks, from Monday 28 December 2026 to Sunday 2 January 2028, so the first week of January is covered at both ends. 216 pages.
- The undated edition has 52 weeks you date yourself. 214 pages.
Whichever you pick, the thing that makes a planner work is the same: a short weekly routine, done most Sundays, not perfectly.
Frequently asked questions
What is the difference between a dated and an undated planner?
A dated planner has the days and weeks printed in. An undated planner has the same pages with blank dates, so you write in the date of the week you start and continue from there.
Is an undated planner better?
It depends on how you plan. An undated planner is better if you start mid-year or tend to skip weeks, because missed weeks leave no blank pages. A dated planner is better if you start in January and want the book ready to use without writing dates.
Can I use an undated planner for 2027?
Yes. An undated planner works for any year. Write in the Monday you start and carry on week by week.
How many weeks are in your planners?
The 2027 dated edition has 53 weeks, from Monday 28 December 2026 to Sunday 2 January 2028. The undated edition has 52.