TL;DR:
Put fixed meetings on the calendar first, then place the biggest task in the best blocks, then add buffers.
A plan that fills every minute breaks on the first interruption. Leave space.
Review on Friday: what moved, what finished, what to carry into next week.
A to-do list tells you what you want to do. It does not tell you when. By Wednesday the report is still not started, because every free hour was taken by something smaller. Time blocking means giving the work a place on the calendar, so the hour exists before the week gets busy.
The rule that makes it work: big tasks first
Put the important, large task in the blocks where you think best, before small tasks have a chance to eat them. Email, admin and quick replies fit in the gaps. A big task cannot be made to fit into gaps.
Estimate honestly. Most people guess too short. If you have no history to go on, add a margin of half again to your first guess.
Before you start
Open next week's calendar and note every fixed commitment.
List three or four outcomes for the week, and rough hours for each.
Know your working hours. Plan only inside them.
Pick a color or label for focus blocks so they stand out from meetings. Mark them busy so nobody books over them.
Step by step
Place the fixed things: Meetings, appointments and anything with another person's time attached.
Add buffers: A short gap before and after meetings for notes, travel or a drink of water. Also a longer gap for lunch.
Place the biggest task: Split it into blocks of one to two hours, in your best part of the day.
Fill in the smaller tasks: Group similar ones, such as all replies, into one block.
Leave a spare block: One or two unassigned hours that absorb overruns.
Add a Friday review: A short block at the end of the week to look back and plan forward.
Worked example: planning focus blocks around meetings
Work hours are 9:00 to 17:00, five days, so 5 × 8 = 40 hours. Meetings that week:
Day | Meeting | Length |
|---|---|---|
Mon | 10:00 to 11:00 | 1 hour |
Tue | 14:00 to 15:30 | 1.5 hours |
Wed | 11:00 to 12:00 | 1 hour |
Thu | 9:30 to 10:00 | 0.5 hours |
Fri | 15:00 to 16:00 | 1 hour |
Meetings total 1 + 1.5 + 1 + 0.5 + 1 = 5 hours. The main task is a report that needs about 6 hours of drafting. Place it in three two-hour blocks:
Mon 11:15 to 13:15, after a 15-minute buffer following the meeting.
Tue 9:00 to 11:00, well clear of the afternoon meeting.
Wed 13:00 to 15:00, after the meeting and lunch.
Check: 3 × 2 = 6 hours, matching the estimate. None of the blocks overlaps a meeting. Thursday late morning gets 10:30 to 12:00 for a smaller 1.5-hour task, and Friday gets a review from 16:15 to 17:00, after a 15-minute buffer from the end of the 15:00 to 16:00 meeting, and lasting 45 minutes. Total planned: 6 + 1.5 + 0.75 + 5 meeting hours = 13.25 hours.
That leaves 40 − 13.25 = 26.75 hours unassigned. This is deliberate. It is where email, interruptions, lunch, and surprises live. Do not fill it with more blocks. If a second task needs hours, add it, but keep a visible unplanned share.
When the week falls apart
Some weeks an urgent request lands on Tuesday and wrecks the plan. That is normal, and it is what the spare hours are for. Do not abandon the whole schedule. Take the block that was displaced, drag it to the next open slot, and if nothing is open, decide which smaller task gives way. Say the trade-off out loud or in a message to whoever asked: "I can do this Thursday afternoon if the review slips to next week."
Moving blocks is part of the method, not a failure of it. The calendar is a working draft that shows you what each decision costs.
Review on Friday
In the last block, answer three questions on paper or in a note. What did I finish? What took longer than I guessed, and by how much? What moves into next week? The second question corrects your estimates, so next week's plan is a little more honest than this one.
Block names matter. A block called "Draft report section 2" tells you what to do when you sit down. A block called "Work" makes you decide again, which costs the focus you were protecting.
Mistakes to avoid
Planning back to back from 9 to 5 with no space.
Giving small tasks the best hours.
Making blocks so vague they say only "work". Name the output: "draft section 2".
Never moving a block. When something slips, drag it to a new slot the same day, don't delete it.
Leaving blocks visible as free time, so others book into them.
Doing it faster
If you want help arranging the week, DuckyHelper can see your calendar on screen while the pill is open and talk through where a block would fit. You place the blocks yourself.
Frequently asked questions
How long should a focus block be?
One to two hours suits most people. Longer blocks need a break in the middle.
What if my day is mostly meetings?
Then protect one block, even 90 minutes, and decline or shorten something else to make room.
Get started
