MDCAT Aggregate Calculation: How Your MBBS Merit Number Is Actually Built
You have 168 hours a week. Not more, not fewer, and no method changes that number.
Subtract eight hours of sleep a night and 112 remain. Subtract six hours of school or college across five days and you are at 82. Subtract commuting, meals, prayers, family obligations and household duties — call it thirty-five hours, conservatively — and roughly 47 hours are left standing.
That is the real budget. Every timetable that collapses in week three collapses because it was drawn against a budget the student never actually counted.
Quick answer: To make a study timetable, first audit where your 168 weekly hours currently go, then allocate only the hours that genuinely remain. Assign subjects by difficulty rather than preference, build in review blocks and one empty catch-up slot per week, and revise the plan every seven days.
This guide is tiered. Start at the level that matches you now — not the level you wish you were at.
The honest audit
For seven days, write down what you actually did in each block of the day. Not what you intended. What happened.
☐ Log sleep — real sleep, including the late nights
☐ Log every hour at school, college or academy
☐ Log commute, meals and family time
☐ Log phone time honestly, in a separate column
☐ Log the hours you genuinely studied, with full attention
☐ Total each column at the end of the week
Most students discover two things. The first is that their available hours are fewer than they assumed. The second is that their focused study hours are far fewer than their seated study hours.
Beginner: the minimum viable timetable
The mistake at this stage is ambition. A beginner timetable is not designed to maximise output. It is designed to be impossible to fail, because the habit is the product and the studying is the by-product.
Build it in four moves
- Pick two fixed slots per day. Not five. Two. Same times daily, chosen around commitments that will not move.
- Make each slot 45 minutes. Long enough to matter, short enough that skipping it feels absurd.
- Assign one subject per slot. No switching mid-block.
- Leave weekends open for the first fortnight.
That is ninety focused minutes a day. Ten and a half hours a week against a 47-hour budget — deliberately, comfortably under capacity.
Action list
☐ Choose your two daily slots and write them somewhere visible
☐ Set a phone alarm for each, labelled with the subject
☐ Put the phone in a different room during the block
☐ Mark each completed block with a tick on a paper calendar
☐ Do not add anything for fourteen days
The only success metric at this tier is the tick count. Not pages covered. Not chapters finished. Ticks.
If you complete twenty-two of twenty-eight blocks in a fortnight, move up. If you do not, repeat the fortnight with one slot instead of two — and treat that as progress, not failure.
Intermediate: subject weighting and review cycles
The usual cause is straightforward. You are studying the subjects you enjoy, in the order you enjoy them, and calling it a schedule.
Weight by difficulty, not by preference
Rank your subjects from hardest to easiest. Then allocate the opposite of your instinct.
| Subject rank | Share of weekly study hours |
|---|---|
| Hardest subject | ~30% |
| Second hardest | ~25% |
| Middle subjects | ~30% combined |
| Strongest subject | ~15% |
Your strongest subject feels productive because progress is easy to see. That comfort is exactly why it should receive the smallest allocation.
Add the review layer
New material without review is a leaking bucket. Build three kinds of block into the week:
- Learning blocks — new content. Roughly half your hours.
- Practice blocks — problems, past papers, writing answers. Roughly a third.
- Review blocks — revisiting what you learned three days ago and two weeks ago. The remainder.
Review is the block students cut first when time is short. It is the block that determines whether the other two were worth doing.
The 7-day rhythm
| Day | Structure |
|---|---|
| Mon–Thu | Two learning blocks + one practice block |
| Fri | Practice-heavy — apply the week’s material |
| Sat | Review week + one catch-up block |
| Sun | Light review, plan next week, rest |
Action list
☐ Rank subjects by difficulty and allocate hours accordingly
☐ Split every week into learning, practice and review
☐ Reserve one weekly catch-up slot and leave it empty
☐ Test yourself before opening the book, not after
☐ Review the week each Sunday and adjust one thing
One empty slot per week is non-negotiable. A timetable with no slack is a timetable that breaks the first time life interferes — and life interferes weekly.
Advanced: energy mapping and exam simulation
For you if: your schedule holds, your review cycle runs, and you are optimising for a specific high-stakes exam.
Map your energy, not just your time
Not all hours are equal. Track your concentration for a week and identify:
- Peak hours — sharpest focus, usually two to three hours a day
- Functional hours — capable but not brilliant
- Dead hours — presence without processing
Then match the work to the window. Hardest new material in peak hours. Practice and problem sets in functional hours. Flashcards, formula lists and light review in dead hours. Nothing at all in the hour before sleep except passive revision.
Most students spend their peak hours on their easiest subject — usually because it is what they start the day with out of habit. Fixing this alone changes outcomes without adding a single hour.
Simulate the exam, don’t just study for it
Once a week, replicate real conditions: full duration, correct time of day, no notes, no pausing, no phone. Mark it strictly.
The purpose is not the score. It is discovering how your performance decays in hour three — a fact no amount of chapter revision reveals.
action list
☐ Identify your peak hours and protect them ruthlessly
☐ Schedule hardest material into peak windows only
☐ Run one full-length timed simulation weekly
☐ Log every error into a single mistake notebook
☐ Convert the mistake notebook into next week’s review blocks
☐ Taper intensity in the final week — consolidate, don’t cram
Do this, not that
| Do | Don’t |
|---|---|
| Schedule fewer hours than you have | Fill every waking hour on paper |
| Fix start times, not durations | Plan by vague “evening study” |
| One subject per block | Rotate subjects every twenty minutes |
| Build in one empty catch-up slot | Assume nothing will go wrong |
| Review old material weekly | Only ever move forward |
| Track completion on paper | Rely on memory to know how you’re doing |
| Rebuild the plan every Sunday | Treat the timetable as permanent |
| Put the phone in another room | Keep it face-down on the desk |
When the timetable breaks — and it will
Week three is where schedules die. Not from lack of discipline, but from a design flaw: no recovery path.
Here is the repair sequence.
- Do not restart from zero. Restarting is the abandonment ritual disguised as commitment.
- Diagnose the specific failure. Was the block at a bad time? Was the subject too heavy for that slot? Were you simply exhausted?
- Cut the plan by a third. A schedule you complete at 60% capacity beats one you abandon at 100% ambition.
- Resume tomorrow, not Monday. Waiting for a clean start date costs you six days and reinforces the idea that the plan is fragile.
- Keep the tick record running. An unbroken record with gaps in it is still a record. A destroyed one is not.
A timetable is not a contract. It is a hypothesis you revise weekly.
Action Plan — your first seven days
☐ Day 1: Start the honest audit. Log everything.
☐ Day 2–7: Continue logging. Change nothing yet.
☐ Day 7 evening: Total your columns. Write down your real available hours.
☐ Day 7 evening: Choose your tier honestly, based on the last three months — not on intention.
☐ Day 7 evening: Write two fixed slots (Tier 1) or a weighted weekly grid (Tier 2/3) on paper.
☐ Day 8: Begin. Tick the first box.
☐ Day 14: Review. Adjust exactly one thing.
Paper, not an app. An app you have to open is a decision point, and every decision point is an opportunity to negotiate with yourself.
Key Takeaways
- You have 47-ish genuinely free hours a week. Count yours before planning anything.
- Beginners should deliberately under-schedule. Two 45-minute blocks daily, and nothing more, for a fortnight.
- Allocate hours by difficulty, not enjoyment — your strongest subject deserves the smallest share.
- Learning, practice and review are three different blocks. Cutting review is cutting the only thing that makes the rest stick.
- One empty catch-up slot per week is what separates a resilient plan from a fragile one.
- Match your hardest work to your peak concentration hours, not to the start of the day.
- When it breaks, cut by a third and resume tomorrow. Never restart from zero.
FAQ
How many hours should I study daily?
Fewer than you think, and consistently. Ninety focused minutes daily, sustained for a month, produces more than an eight-hour weekend burst followed by five idle days. Increase the total only after you have proven you can hold the current one for two full weeks.
Should I make a daily or weekly study timetable?
Both, at different resolutions. Plan the week’s shape on Sunday — which subjects get which share — and confirm the specific blocks each morning. A weekly plan alone is too rigid; a daily plan alone has no direction.