Why do so many students who start their thesis on time still finish late? Rarely because they write too slowly. The delays come from steps that do not depend on them: an ethics committee that meets once a month, participants who reply in week six instead of week two, a supervisor who needs three weeks to read a chapter. A realistic thesis timeline plans for those waits instead of assuming every step follows the previous one immediately.
This article is part of our guide How to Write a Master’s Thesis by the Mastermind PhD team and relates to our Master’s Thesis support service. Sources last checked: November 2026.
This guide shows how to convert your thesis credits into working hours, how to divide those hours between phases, and gives two concrete plans: six months for a typical 30-ECTS master’s thesis and twelve months for a longer or part-time project.
What is a thesis timeline? It is a dated plan that breaks the thesis into phases (proposal, ethics, literature, data collection, analysis, writing, revision and submission), assigns each phase a share of the available time, sets milestones agreed with the supervisor and includes buffer time for steps outside the student’s control.
How much time does a thesis actually take?
Start from the credits. In the European Credit Transfer and Accumulation System, 60 ECTS credits correspond to a full year of study, and the ECTS Users’ Guide (2015) sets one credit at 25 to 30 hours of work. A 30-ECTS master’s thesis therefore represents roughly 750 to 900 hours. Bielefeld University’s module description for its MSc in Molecular Biotechnology, for example, gives the thesis 30 credit points, 900 hours and six months of processing time.
Nine hundred hours over six months is about 35 hours a week, which is a full-time job. If you also work, teach or take courses, the same thesis timeline has to stretch to nine or twelve months. Calculate your real weekly hours before you choose a plan.
How should the time be divided between phases?
| Phase | Share of total time | In a 6-month plan |
|---|---|---|
| Proposal, question and design | 10% | About 2.5 weeks |
| Ethics approval and access | 5% plus waiting time | 1 week of work, 3 to 6 weeks of waiting |
| Literature review | 15% | About 4 weeks |
| Data collection | 20% | About 5 weeks |
| Analysis | 15% | About 4 weeks |
| Writing results and discussion | 20% | About 5 weeks |
| Revision, formatting and submission | 15% | About 4 weeks |
These shares are a starting point. A quantitative thesis with an existing dataset needs less collection time and more analysis; an interview study needs more time for transcription and coding.
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A realistic 6-month thesis timeline
This version suits a full-time 30-ECTS thesis with primary data:
- Weeks 1 to 3: refine the question, agree the design with your supervisor, and submit the ethics application in week 3 at the latest.
- Weeks 3 to 8: while ethics is under review, write the literature review and the method chapter, and build and pilot your instrument.
- Weeks 8 to 13: collect data. Send reminders on a schedule and track responses weekly.
- Weeks 12 to 17: clean and analyze the data. Start as soon as the first data arrive.
- Weeks 16 to 21: write results and discussion; send each chapter to your supervisor as soon as it is complete.
- Weeks 21 to 24: revise the full draft, write the introduction, conclusion and abstract last, then format, proofread and submit.
The overlaps are deliberate. In a six-month thesis timeline, no phase can wait for the previous one to finish completely.
A realistic 12-month thesis timeline
This version suits a part-time thesis, a longer master’s project or a thesis with fieldwork abroad:
| Months | Main work | Milestone |
|---|---|---|
| 1 to 2 | Question, design, proposal | Proposal approved |
| 2 to 3 | Ethics application, access negotiations | Ethics approval |
| 3 to 5 | Literature review, method chapter, instrument and pilot | Two chapters drafted |
| 5 to 7 | Data collection | Dataset complete |
| 7 to 9 | Analysis | Results tables and figures |
| 9 to 11 | Results, discussion, introduction and conclusion | Full first draft |
| 11 to 12 | Revision, formatting, proofreading | Submission |
The extra months do not mean slower work. They absorb the realities of a part-time student: weeks with no thesis time, a data source that becomes available later than promised, and longer feedback cycles.
Which buffers make a timeline realistic?
- Ethics: check how often the committee meets and how long a decision usually takes, then add a revision round.
- Feedback: assume two to three weeks for a supervisor to return a chapter, and plan other work for that time. Many UK universities set minimum meeting frequencies for research students; the University of Leeds, for example, requires at least 10 formal meetings a year for full-time research students, with no more than eight weeks between them.
- Data collection: plan for a lower response rate than you hope for and decide in advance what you will do if you reach only half your target.
- Final month: keep the last two to three weeks free of new writing. They are for revision, formatting and checks.
How do you keep the plan on track?
Put the thesis timeline into a calendar, not only a document, and review it every two weeks. Track three numbers: words of usable draft, the status of each chapter (outline, draft, revised, approved) and days left until each milestone. When a phase slips by more than a week, decide immediately what to shorten, rather than hoping to catch up later.
Share the plan with your supervisor at the start and agree on dates for chapter submissions. A supervisor who knows that chapter 2 arrives on 15 March can reserve time to read it.
Common planning mistakes
- Planning data collection to start the day ethics approval is expected, with no margin.
- Leaving all writing until the analysis is complete.
- Treating the literature review as finished in month two, when it needs updating at the end.
- Ignoring holidays, exam periods and the supervisor’s absences.
- Planning formatting and the reference list for the final weekend.
- Copying a classmate’s schedule without checking whether your design, data source and working hours are comparable.
A useful test before you commit to a plan is to walk through it backwards from the submission date. If the dates only work when every reply arrives on time and every chapter is approved at the first reading, the plan is too tight, and it is better to cut scope now than in the final month.
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Frequently asked questions
Can I finish a master’s thesis in three months?
Only if the design is simple, the data already exist or are quick to collect, and you can work on it full-time. With primary data and ethics approval, three months leaves almost no margin for delays.
What should I do if I fall behind?
Identify the phase that slipped, cut scope rather than quality (fewer variables, a smaller but justified sample, a narrower comparison) and discuss a revised thesis timeline with your supervisor early.
Should the literature review be finished before data collection?
A solid draft should exist, because it shapes your instrument. Expect to update it after the analysis, when you know which findings need to be discussed.
How many hours a week do I need for a part-time thesis?
For a 30-ECTS thesis of 750 to 900 hours spread over 12 months, plan for about 15 to 18 hours a week, allowing for weeks when you cannot work on it.
When should I write the introduction and abstract?
Draft a working introduction early to guide your thinking, but rewrite it and write the abstract last, once the results and conclusions are settled.
Sources
- European Commission. (2015). ECTS Users’ Guide 2015. Publications Office of the European Union. https://op.europa.eu/en/publication-detail/-/publication/da7467e6-8450-11e5-b8b7-01aa75ed71a1 (accessed November 2026)
- European Commission. European Credit Transfer and Accumulation System (ECTS). https://education.ec.europa.eu/education-levels/higher-education/inclusive-and-connected-higher-education/european-credit-transfer-and-accumulation-system (accessed November 2026)
- Universität Bielefeld. Modulbeschreibung 39-M-MBT-MSc_a: Masterarbeit, Molekulare Biotechnologie (M.Sc.). https://ekvv.uni-bielefeld.de/sinfo/publ/modul/365142331 (accessed November 2026)
- University of Leeds. Supervision meetings (postgraduate research). https://students.leeds.ac.uk/postgraduate-research-starting-research/doc/supervision-meetings (accessed November 2026)
- Dunleavy, P. (2003). Authoring a PhD: How to Plan, Draft, Write and Finish a Doctoral Thesis or Dissertation. Palgrave Macmillan.
- Phillips, E. M., & Johnson, C. G. (2022). How to Get a PhD: A Handbook for Students and Their Supervisors (7th ed.). Open University Press.
Sources last checked: November 2026. This article is general educational guidance and does not replace your university regulations or your supervisor’s instructions. How we prepare our content.