Turn energy highs into your deepest work blocks. Protect mornings, and automate smart break timing. See your plan instantly, then export and start confidently.
Use energy windows and task scoring to shape a realistic day plan.
Use this as a reference for realistic durations and energy needs.
| Task | Duration | Priority | Energy needed | Type | Deadline |
|---|---|---|---|---|---|
| Write proposal draft | 90 min | 5 | 5 | Deep Work | 12:00 |
| Design review notes | 45 min | 4 | 4 | Creative | 16:30 |
| Email triage | 30 min | 3 | 2 | Admin | — |
| Team check-in | 30 min | 3 | 2 | Meeting | — |
| Learning session | 60 min | 2 | 3 | Learning | — |
1) Task scoring
Each task receives a planning score so important work is scheduled first:
TaskScore = 2·Priority + 1.4·Urgency + 1·EnergyNeeded
2) Slot energy model
Every time slot gets an estimated energy value (1–5) based on chronotype, your peak windows, and fatigue over time:
SlotEnergy = clamp( Baseline(chronotype, t) + PeakBoost(window) − FatigueRate·HoursSinceStart , 1, 5 )
3) Best-fit placement
The planner searches for a free start time that maximizes fit between a task’s energy need and the slot’s average energy, while softly penalizing mismatches and excessive switching.
Tip: If tasks do not fit, reduce durations, widen your workday, or lower buffer and break settings.
This planner turns your day into 15‑minute slots and assigns each slot an estimated energy value from 1 to 5. A chronotype shift moves the curve earlier or later, while two peak windows add a controlled boost. Fatigue then subtracts energy as hours pass, preventing unrealistic late‑day deep work. Use the energy needed field to separate true focus work from routine execution, so your best hours stay protected.
Tasks are ranked using a weighted score that favors impact first, then time pressure. Priority is doubled, urgency rises as the deadline approaches, and energy need keeps demanding work inside strong windows. This method helps a 90‑minute draft outrank a 30‑minute email sweep when both compete. If two tasks tie, increase the one with higher consequence or earlier external dependency.
Long focus blocks are split into segments, inserting short breaks after a configurable threshold such as 75 minutes. Breaks protect working memory, lower error rates, and reduce the temptation to switch tasks midstream. If your calendar is meeting‑heavy, shorten focus thresholds and keep breaks brief but consistent. A practical default is 10 minutes of recovery for each 60 to 90 minutes of sustained concentration.
A buffer percentage reserves slack for overruns, handoffs, and quick admin. Ten percent often works for predictable work, while fifteen to twenty percent suits volatile support days. Watch utilization: when planned minutes exceed ninety percent of capacity, even small interruptions cascade into missed deadlines. Treat buffer time as a protected block, not as “free time,” and you will finish more tasks on time.
After generating a plan, export it to CSV for tracking or PDF for quick sharing. Compare planned versus actual completion times and adjust durations next week. Over time, you can tune fatigue rate, peak boosts, and break cadence so the schedule matches your real performance, not wishful estimates. A monthly review of completion rates by task type reveals where meetings, admin, or learning are stealing peak energy. Log one reason for each miss, then refine deadlines, break timing, and buffer percentages with evidence weekly.
It tells the planner how much focus the task requires. Use 4–5 for writing, analysis, or problem solving. Use 1–3 for routine work like email, admin, or short check‑ins, so demanding tasks land inside stronger energy windows.
Choose periods when you consistently feel alert and productive. Start with two blocks, such as mid‑morning and mid‑afternoon, then adjust based on completion quality. Keep windows realistic; overly long peaks reduce placement accuracy for the rest of the day.
The total required time may exceed your available workday after breaks and buffer time. Long durations, tight deadlines, and high energy requirements also reduce feasible slots. Reduce durations, widen the day, or lower break and buffer settings to fit more work.
Use the default as a baseline and change it based on how quickly focus drops. If afternoons feel harder, raise the value slightly. If you stay sharp late, lower it. Small changes, like 0.03, can noticeably shift late‑day placements.
Task type adds a small adjustment so meetings and admin can use lower‑energy periods without harming deep work. Deep Work and Creative tasks benefit most from peak windows. Learning works well in moderate energy slots, especially when paired with shorter breaks.
Use CSV to track planned versus actual time and compute completion rates per task type. Use PDF to share a daily plan with stakeholders or to keep a printout nearby. Export again after edits so the files always match the latest plan.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.