Time-Block Planner

What it does

Generate a structured time-blocked schedule for your working day. Set your start and end times, pick a focus- block size (45 / 60 / 90 / 120 minutes — pick what fits your attention span and the work’s nature), and break duration (typically 15-30 min between blocks), and the tool builds a clean grid you can fill with tasks. Includes auto-tally of total focus time vs total break time, plus an exportable schedule (markdown, plain text, or print).

Time-blocking — the practice of pre-allocating specific chunks of your day to specific tasks — is most associated with Cal Newport’s Deep Work (2016) and before him with Benjamin Franklin’s 1726 daily schedule (he literally drew up an hour-by-hour plan and stuck to it). The mechanic is older than that — most pre-modern monasteries had hour-by-hour rules of life. The modern rationale: humans are bad at intentional task-switching; if you don’t pre-decide what to work on, you’ll gravitate to inbox / Slack / shallow work. Time-blocking forces a decision when you have the most clarity (the night before / morning of) rather than when you’re deepest in execution and least equipped to decide.

Common block sizes: 25 min (Pomodoro) — frequent breaks, good for fragmented work or attention-issues; 50 min — typical lecture / class length, fits the natural attention curve; 90 min — matches the basic rest- activity cycle (BRAC), the body’s natural ~90-min fatigue cycle described by Nathan Kleitman in 1963. Newport recommends 60-90 min blocks for deep work. Pick what matches the kind of work you’re doing plus your personal attention pattern.

How to use it

1. Set your day's start time (when you actually start, not when you wake up — distinguish blocking from morning routine).
2. Set end time (typically when you stop work, before family / dinner / evening).
3. Pick block size: 25 (Pomodoro), 50, 60, 90, 120 minutes. Try multiple options; pick what fits your work nature.
4. Pick break size: 5-30 minutes. Longer breaks for longer blocks (90-min block + 30-min break is a typical pair).
5. Fill in tasks for each block. Be specific: 'Draft Q3 quarterly report intro section' beats 'Work on report'.
6. Print or export. Some people work better with a paper copy; some prefer the digital version on a second screen.
7. At day's end, review: which blocks went as planned, which got hijacked. Adjust tomorrow's plan accordingly.

When to use this tool

• Knowledge work where attention is the scarce resource.
• Days with mixed focus + meetings — block out focus time first, then work meetings around it.
• Recovery from a chaotic / reactive period — blocking re-establishes intentional work.
• Trying to ship a big project that keeps getting deprioritized by smaller urgent things — block it explicitly.

When not to use it

• Highly reactive jobs (support, ops, on-call rotations) where the work is responding to incoming events. Time-blocking conflicts with the job's nature.
• Creative work that benefits from open exploration — sometimes the best ideas come from undirected wandering, not pre-blocked task-execution.
• When you have a real emergency / fire — fight the fire first, time-block tomorrow.
• Days dominated by external meetings — there's nothing to block; time is already allocated by others.

Common use cases

• Onboarding a colleague who needs the same calculation/conversion
• Verifying a number or output before passing it on
• Quick use during a typical workday
• Pre-decision sanity-check on inputs and outputs