Days are the wrong unit
"Eighty days to the exam" and "194 hours to the exam" describe the same calendar and produce different decisions. Two hours on four weekdays plus nine hours across the weekend is 17 hours a week; eighty days is 11.4 weeks; the total is 194 hours. If the course is a 300-hour course, more than a third of it has nowhere to go, and that was true on the first day.
Seeing the deficit early is worth more than seeing it precisely later. Early, all three levers still work. Halfway through, the only one left is cutting material.
Turning pages and lectures into hours
The conversion is per-item minutes, and the honest way to get it is to time yourself rather than borrow an average. Three timed sessions is enough to know your own rate. As a starting point before you have that:
| Material | Per item | Notes |
|---|---|---|
| First pass, unfamiliar theory text | 4-8 min a page | Marking what is unclear, not stopping to fix it |
| Second pass, marked sections | 1.5-3 min a page | Longer if you are writing summaries |
| Past-paper questions | 1.5-3 min a question | Including reading the answer |
| Recorded lecture, 60 min nominal | 45-75 min | Playback speed is offset by notes and rewinds |
These are orientation figures, not measurements of you. Your own numbers will differ by subject and by how tired you are, and they are the ones the plan should be built on.
The empty weekday
A plan with hours on all seven days usually breaks inside two weeks, because the things that eat study time — a late finish at work, a commitment you agreed to months ago, a bad night — are not unlikely events, they are certainties with unknown dates. Without slack, each one becomes permanent debt.
Setting one weekday to zero removes it from the study-day count, so the hours per study day rise. That is the trade made visible: if the remaining days can carry the load, the buffer is affordable. If taking one day out pushes the daily figure to four hours, the buffer is not the problem — the target is.
When the answer is "short by 60 hours"
There are only three places to act, and most workable answers use all three.
- More hours a week. The obvious lever and the one that runs out fastest. Going from 17 to 25 hours means most weekday evenings, which tends to reduce the value of each hour.
- Less material. Drop the topics that carry the least weight, or cut a pass. With a look at past papers first, this is usually the cheapest cut to make.
- A later sitting. The entry fee is sunk, but sitting an exam at 60 percent preparation and then sitting it again is often more expensive in total than waiting.
Small combined moves clear most deficits: three more hours a week plus a 15 percent cut in material closes a 60-hour gap over ten weeks.
Recalculating is the point
Run this again every fortnight with the real figure in the "already covered" box. The new daily target is built on where you actually are, which is a number you can hit; a plan to catch up on top of the old rate is a number nobody hits. If you would rather work in pages per day than hours, the Study Plan Calculator answers that shape of question, and for a plain countdown to the date there is the D-Day Calculator.
Questions people ask
What should I put in the weekday hours?
What you actually did last week, not what you intend to do this week. If you have no record, take the number you want to write and multiply it by 0.7 — planned hours come in around 60 to 70 percent of real hours for most people, and starting from the honest figure means the plan does not need rescuing in a fortnight.
How much credit should I give material I covered months ago?
Less than you want to. A chapter read two months ago and untouched since is realistically half covered, and entering it as fully covered makes the remaining time look more comfortable than it is. That error does not surface gradually; it surfaces all at once in the final week.
Does the exam day count as available time?
No. The available hours run from today through the day before the exam. Morning exams make the evening before the last usable block, and in any case the morning of an exam is not time you can plan a workload into.
How do I handle several subjects?
Run each subject on its own and add the per-day hours together. If the sum exceeds what you can protect on a normal day, the excess is the amount you have to cut, and running them separately shows which subject it should come from. One combined run gives the right total and hides that.