You read The 12 Week Year, or someone at work did, and now you want a 12 week year template that just tells you when each block starts and ends in 2027, with somewhere to score your weeks. Most templates are blank, week 1 to week 12 with no dates.
This post gives you the 2027 dates for four 12-week blocks, with a review week after each one, so the whole thing fits the year exactly. Then it shows how to build the weekly scoring in Google Sheets and how to see all four blocks on one page.
TL;DR
- Four 12-week blocks plus four review weeks fill 2027 exactly, starting Monday January 4 and ending Sunday January 2, 2028.
- Score each week by tactics completed, not by how close the goal feels.
- The most common mistake is planning block 1 in detail and leaving blocks 2 to 4 without dates.
Who this is for
- Real estate agent: Twelve weeks is a good length for a prospecting push you can see the end of.
- Financial advisor: Quarter-like blocks with a review week fit how you already report to clients.
- Startup founder: You get four real sprints in the year and a fixed week to step back between them.
- Sales team lead: Everyone on the team works to the same block dates and scores weeks the same way.
- Freelance writer: One book draft or one client push per block is a plan you can check each Monday.
The 12 Week Year in brief
The 12 Week Year is a book and execution system by Brian P. Moran and Michael Lennington. The official site puts the core idea plainly: a year is no longer 12 months, it's 12 weeks. From the official site and workbooks, the main pieces are:
- Vision: the long-term picture you're working toward.
- 12 Week Plan: a few 12 Week Goals (where you want to be at the end of the 12 weeks) and the tactics that get you there.
- Weekly Plan: the tactics due this week, a one-twelfth slice of the 12 Week Plan.
- Scoring: each week you mark off the tactics you completed and get a score out of 100. The team guide says averaging 80% or more over the 12 weeks means you're likely to hit your goals.
- WAM: a short Weekly Accountability Meeting, around 15 to 30 minutes.
For the full method, read the book or the official 12 Week Year site. The rest of this post is about dates and a sheet.
The 2027 dates for four blocks
Each block is 12 weeks, Monday to Sunday. After each block I leave one review week before the next starts. The official team guide places a review and planning session in week 12; I like giving it a full week of its own, and it makes four blocks fit 2027 with nothing left over.
- Block 1: Mon Jan 4 to Sun Mar 28. Review week Mar 29 to Apr 4.
- Block 2: Mon Apr 5 to Sun Jun 27. Review week Jun 28 to Jul 4.
- Block 3: Mon Jul 5 to Sun Sep 26. Review week Sep 27 to Oct 3.
- Block 4: Mon Oct 4 to Sun Dec 26. Review week Dec 27 to Sun Jan 2, 2028.
These match ISO week numbers: block 1 is ISO weeks 1 to 12, the first review is week 13, block 2 is weeks 14 to 25, and so on, so =ISOWEEKNUM(date) tells you where you are. Friday January 1 to Sunday January 3 fall before block 1, a long weekend for writing the vision.
Every block has 60 weekdays. If you get US federal holidays off, blocks 1 to 3 each lose two, and block 4 loses four (Columbus Day, Veterans Day, Thanksgiving on November 25 and Christmas observed on Friday December 24), so set block 4's goals smaller. Also note that block 3 starts on Monday July 5, Independence Day observed.
Build the template in Google Sheets
DATES tab. Put headers Start, End, Review start, Review end in A1:D1. Then:
- A2:
=DATE(2027,1,4) - B2:
=A2+83(the Sunday 12 weeks later) - C2:
=B2+1and D2:=B2+7 - A3:
=A2+91, then fill B2:D2 down to row 5 and A3 down to A5.
BLOCK tab (one per block). Column A is the goal, column B the tactic, columns C to N are weeks 1 to 12. Insert a checkbox only in the weeks each tactic is due, and leave the other cells empty. In row 23, under each week, score it:
=IFERROR(COUNTIF(C2:C21,TRUE)/(COUNTIF(C2:C21,TRUE)+COUNTIF(C2:C21,FALSE)),"")
Format row 23 as a percent and fill it right to column N. Unticked checkboxes count as FALSE and empty cells count as neither, so the score only looks at tactics that were due. In O23, =AVERAGE(C23:N23) gives the block average. Add conditional formatting on row 23 for "Less than 0.8" so weak weeks stand out at the WAM.
See all four blocks on one page
Big Year is a free Google Sheet with all of 2027 on one page.
- Copy Big Year. In SETTINGS, add the four review weeks' dates so they highlight on the BIG tab.
- On the BIG tab, type "B1 start", "B2 start" and so on in each Monday that begins a block.
- Add your own trips and launch dates. A vacation in week 11 of a block is something to know before week 1.
- Print it from the DOWNLOAD tab on Letter, A4, Tabloid or A3 and keep it by your desk for the Monday WAM.
If you want a column of days with room for notes, the PILLAR layouts in Big Year Premium ($10 for 10 templates) put a mini month above a vertical day list. Write each week's score on its Sunday.
Common pitfalls
- Too many goals: Keep one to three goals per block so the weekly tactics list stays short enough to finish.
- Tactics that aren't actions: "Grow the list" can't be ticked; "Send one newsletter" can.
- Skipping the review week: Block it out now; it's the first thing to get eaten by work.
- Same goals in block 4: Thanksgiving and Christmas both land in block 4, so plan fewer tactics there.
FAQ
When should I start a 12 week year in 2027?
Monday January 4, 2027 is a clean start: it's ISO week 1, and four blocks with a review week after each end on Sunday January 2, 2028.
What is a good weekly score?
The official 12 Week Year team guide says averaging 80% or more of your tactics over the 12 weeks means you're likely to hit your goals.
Is there a 13th week?
The official pages I read describe a review and planning session in week 12. Adding a separate review week after each block is my layout choice, and it makes four blocks fill 52 weeks.
Can I do the 12 Week Year in Google Sheets?
Yes. A DATES tab, one BLOCK tab per 12 weeks with checkboxes, and a COUNTIF score formula cover the scoring. A one-page calendar like Big Year shows the blocks against the rest of your year.
Planning next year? Get the Big Year, a free 2027 calendar in Google Sheets.
