Academic Calendar
Semester dates / lectures
The Autumn Semester (HS) begins in week 38 (mid-September) and ends in week 51 (just before Christmas). It comprises 14 weeks.
The Spring Semester (FS) begins in week 8 (mid-February) and ends in week 22 (end of May). It lasts 15 weeks, including a week without classes after Easter.
The lecture-free period is reserved for exam preparation and exam sessions (winter exam session: calendar weeks 4 - 7 / summer exam session: calendar weeks 32 - 35).
The administrative year (ETH-internal use only) is divided into Spring Semesters (February 1 to July 31) and Autumn Semesters (August 1 to January 31).
| Spring Semester 2023 | Monday, 20.02.2023 - Friday, 02.06.2023 | Showadd |
|---|---|---|
| Calendar weeks 8 - 22 | ||
| Autumn Semester 2023 | Monday, 18.09.2023 - Friday, 22.12.2023 | Showadd |
| Calendar weeks 38 - 51 | ||
| Spring Semester 2024 | Monday, 19.02.2024 - Friday, 31.05.2024 | Showadd |
| Calendar weeks 8 - 22 | ||
| Autumn Semester 2024 | Monday, 16.09.2024 - Friday, 20.12.2024 | Showadd |
| Calendar weeks 38 - 51 | ||
| Spring Semester 2025 | Monday, 17.02.2025 - Friday, 30.05.2025 | Showadd |
| Calendar weeks 8 - 22 | ||
| Autumn Semester 2025 | Monday, 15.09.2025 - Saturday, 20.12.2025 | Showadd |
| Calendar weeks 38 – 51; Friday, December 24, 2021 -> End of classes & buildings closed from 12 h | ||
Overview semester dates
Without additional information the individual opening and and closing times of the ETH buildings apply.
2023
| Information days for final-year secondary school students | Wednesday, 06.09.2023 - Thursday, 07.09.2023 | Showadd |
|---|---|---|
| Wednesday and Thursday, calendar week 36 | ||
| "Knabenschiessen" (local Zurich holiday) | Monday, 11.09.2023 | Showadd |
| Buildings open! | ||
| Start Autumn semester | Monday, 18.09.2023 | Showadd |
| Calendar weeks 38-51 | ||
| Welcome for new students | Monday, 18.09.2023 | |
| Classes begin | Tuesday, 19.09.2023 | |
| Application deadline session examinations and end of semester examinations | Sunday, 15.10.2023 | Showadd |
| End of fourth semester week | ||
| Doctoral awards ceremony | Friday, 27.10.2023 | |
| Dies Academicus ("ETH Day") | Saturday, 18.11.2023 | Showadd |
| Main building HG closed, Sport Center Polyterrasse MM open | ||
| Polyball (annual student prom) | Saturday, 25.11.2023 | Showadd |
| Buildings HG and MM closed starting Saturday, 17:00 h and Sunday | ||
| End of Autumn semester | Friday, 22.12.2023 | Showadd |
| Calendar weeks 38-51 | ||
| Christmas break | Saturday, 23.12.2023 - Tuesday, 02.01.2024 | Showadd |
| Christmas break - buildings closed up to and including 2 January | ||
2024
| Entrance examinations | Monday, 15.01.2024 - Thursday, 25.01.2024 | Showadd |
|---|---|---|
| Calendar weeks 3&4 | ||
| Doctoral awards ceremony | Friday, 19.01.2024 | |
| Examination session | Monday, 22.01.2024 - Friday, 16.02.2024 | Showadd |
| Calendar weeks 4-7 | ||
| Start Spring semester | Monday, 19.02.2024 | Showadd |
| Calendar weeks 08-22 | ||
| Application deadline session examinations and end of semester examinations | Sunday, 17.03.2024 | Showadd |
| End of fourth semester week | ||
| Week after Easter: no classes | Friday, 29.03.2024 - Sunday, 07.04.2024 | Showadd |
| No classes up to and including Sunday, April 7, 2024 | Buildings closed over Easter from Good Friday until Easter Monday! | ||
| "Sechseläuten" (Zurich spring festival) | Monday, 15.04.2024 | Showadd |
| No classes in the afternoon, buildings closed from 12:00 h! | ||
| Doctoral awards ceremony | Friday, 19.04.2024 | |
| Labour Day | Wednesday, 01.05.2024 | Showadd |
| no classes, buildings closed | ||
| Ascension Day (classes on Friday, 10.05.2024) | Thursday, 09.05.2024 | Showadd |
| no classes, buildings closed | ||
| Whitsuntide | Saturday, 18.05.2024 - Monday, 20.05.2024 | Showadd |
| no classes, buildings closed | ||
| End of Spring semester | Friday, 31.05.2024 | Showadd |
| Calendar weeks 08-22 | ||
| Doctoral awards ceremony | Friday, 12.07.2024 | |
| Swiss National Day | Thursday, 01.08.2024 | Showadd |
| Buildings closed | ||
| Examination session | Monday, 05.08.2024 - Friday, 30.08.2024 | Showadd |
| Calendar weeks 32-35 | ||
| Information days for final-year secondary school students | Wednesday, 04.09.2024 - Thursday, 05.09.2024 | Showadd |
| Wednesday and Thursday, calendar week 36 | ||
| "Knabenschiessen" (local Zurich holiday) | Monday, 09.09.2024 | Showadd |
| Buildings open! | ||
| Start Autumn semester | Monday, 16.09.2024 | Showadd |
| Calendar weeks 38-51 | ||
| Welcome for new students | Monday, 16.09.2024 | |
| Classes begin | Tuesday, 17.09.2024 | |
| Application deadline session examinations and end of semester examinations | Sunday, 13.10.2024 | Showadd |
| End of fourth semester week | ||
| Doctoral awards ceremony | Friday, 25.10.2024 | |
| Dies Academicus ("ETH Day") | Saturday, 16.11.2024 | Showadd |
| Main building HG closed, Sport Center Polyterrasse MM open | ||
| Polyball (annual student prom) | Saturday, 30.11.2024 | Showadd |
| Buildings HG and MM closed starting Saturday, 17:00 h and Sunday | ||
| End of Autumn semester | Friday, 20.12.2024 | Showadd |
| Calendar weeks 38-51 | ||
| Christmas break | Tuesday, 24.12.2024 - Thursday, 02.01.2025 | Showadd |
| Christmas break - Buildings closed from 12 h (midday) up to and including 2 January | ||
2025
| Entrance examinations | Monday, 13.01.2025 - Thursday, 23.01.2025 | Showadd |
|---|---|---|
| Calendar weeks 3&4 | ||
| Examination session | Monday, 20.01.2025 - Friday, 14.02.2025 | Showadd |
| Calendar weeks 4-7 | ||
| Start Spring semester | Monday, 17.02.2025 | Showadd |
| Calendar weeks 08-22 | ||
| Application deadline session examinations and end of semester examinations | Sunday, 16.03.2025 | Showadd |
| End of fourth semester week | ||
| Week after Easter: no classes | Friday, 18.04.2025 - Sunday, 27.04.2025 | Showadd |
| No classes up to and including Sunday, April 27, 2025 | Buildings closed over Easter from Good Friday until Easter Monday! | ||
| "Sechseläuten" (Zurich spring festival) | Monday, 28.04.2025 | Showadd |
| No classes in the afternoon, buildings closed from 12:00 h! | ||
| Labour Day | Thursday, 01.05.2025 | Showadd |
| no classes, buildings closed | ||
| Ascension Day (classes on Friday, 30.05.2025) | Thursday, 29.05.2025 | Showadd |
| no classes, buildings closed | ||
| End of Spring semester | Friday, 30.05.2025 | Showadd |
| Calendar weeks 08-22 | ||
| Whitsuntide | Saturday, 07.06.2025 - Monday, 09.06.2025 | Showadd |
| no classes, buildings closed | ||
| Swiss National Day | Friday, 01.08.2025 | Showadd |
| Buildings closed | ||
| Examination session | Monday, 04.08.2025 - Friday, 29.08.2025 | Showadd |
| Calendar weeks 32-35 | ||
| Start Autumn semester | Monday, 15.09.2025 | Showadd |
| Calendar weeks 38-51 | ||
| Welcome for new students | Monday, 15.09.2025 | |
| "Knabenschiessen" (local Zurich holiday) | Monday, 15.09.2025 | Showadd |
| Buildings open! | ||
| Classes begin | Tuesday, 16.09.2025 | |
| Application deadline session examinations and end of semester examinations | Sunday, 12.10.2025 | Showadd |
| End of fourth semester week | ||
| Dies Academicus ("ETH Day") | Saturday, 22.11.2025 | Showadd |
| Main building HG closed, Sport Center Polyterrasse MM open | ||
| Polyball (annual student prom) | Friday, 28.11.2025 | Showadd |
| Buildings HG and MM closed starting Saturday, 17:00 h and Sunday | ||
| End of Autumn semester | Friday, 19.12.2025 | Showadd |
| Calendar weeks 38-51 | ||
| Christmas break | Wednesday, 24.12.2025 - Sunday, 04.01.2026 | Showadd |
| Christmas break - buildings closed from 12h (midday) up to and including Sunday, 4 January | ||