About & method
How the plan is made, and where every number comes from
All Nighter turns three answers — the paper, when it starts, and how much you have done — into a plan for the hours you have left. This page lists every assumption it makes, so you can disagree with a specific one rather than with the whole thing.
Time
Clock time is converted into study time before anything is scheduled. The plan stops 1h 45m before the paper for travel, food and reaching the hall early, takes 10 minutes of break out of every hour, and weights each hour by when it falls:
| Hours | Worth |
|---|---|
| 6 am – 9 am | 105% |
| 9 am – 1 pm | 100% |
| 8 pm – 11 pm | 95% |
| 11 pm – 1 am | 85% |
| 1 am – 3 am | 65% |
| 3 am – 5 am | 45% |
A full day before the exam day is capped at 6h of work, and morning revision at 2h. Sleep is scheduled as a block; under about six hours to the paper it becomes one 90-minute cycle or a nap, and past roughly 2:45 am the plan sends you to bed and uses the morning instead.
Cost of a unit
Each unit costs minutes per mark, by how much you have already done, multiplied by how expensive its marks are. No unit is ever scheduled below a floor — a chapter is not done in fifteen minutes, and a unit that doesn’t fit is dropped by name.
| Already done | Minutes per mark | Shortest block |
|---|---|---|
| Basically nothing | 12 | 45 min |
| About half | 7 | 30 min |
| Most of it | 4 | 20 min |
Recall-heavy units cost 70% as much per mark, numerical-heavy ones 140%. Units are taken in order of marks per minute, not textbook order, until the hours run out.
The score range
The range is an estimate, not a prediction. A unit you never study still earns something from objective questions; a unit you study once at midnight earns more, but never everything. Unseen passages score about 60% whatever you do the night before.
| Already done | Unit not studied | Unit studied tonight |
|---|---|---|
| Basically nothing | 12% | 50% |
| About half | 35% | 68% |
| Most of it | 55% | 82% |
The result is widened by 15% either way and shown next to CBSE’s pass mark, which is 33% of the written paper, rounded down — 23 of 70, 26 of 80. For subjects with a practical, the written paper has to be passed on its own.
Sources
- CBSE Senior Secondary Curriculum 2025–26
Unit weightage for every paper. Each table is asserted at build time to add up to the paper total, and the site will not deploy if one doesn't.
- NCERT textbooks
Every chapter link opens the PDF on ncert.nic.in. Nothing is copied or re-hosted.
Class 11 is not a board exam: schools set the paper to CBSE’s weightage, so Class 11 guidance describes what a unit contains and what it is worth, and never what “always comes up”.
The AI
Choosing units and minutes is arithmetic and runs in your browser. A language model (Google Gemini) is used for one thing: writing what to do inside each block. It is sent the subject, your preparation level and the list of units with a rough size for each, and nothing else.
It is never sent a number it could restate and never asked to compute one; every figure on the page comes from the code above. If it is slow or unavailable, the plan appears without it.
The evidence
The marksheets and the 183 pages of evaluated answer scripts on this site are one student’s real Class 10 (2024) and Class 12 (2026) results. The scripts were bought back from CBSE after the result. The only things covered are the script’s barcode, the office-use block and the scanning centre’s stamp — none of which identify the candidate. Marksheets are rebuilt from the numbers rather than scanned, so roll numbers, names and dates of birth were never on the site at all.
Independence and corrections
All Nighter is not affiliated with CBSE, NCERT or any school. Some pages carry ads; nothing is sponsored and no link earns a commission. What leaves your device is listed on the privacy page.
Found a wrong number? Corrections go to dpsgnotes@gmail.com, and the source is on GitHub.