IB Exam Zones Explained

If you’re preparing for IB exams, you may see references to exam zones on exam timetables or school communications. These zones help the International Baccalaureate organise exams for schools around the world.

Because IB students sit exams across many countries and time zones, the IB divides schools into different exam zones. Each zone follows its own exam timetable, so exams can take place at appropriate local times while still maintaining exam security.

In this guide, we explain what IB exam zones are, how the zones are structured, and what they mean for your exam schedule. Understanding how the zone system works can help you interpret your exam timetable and know what to expect on exam day.

Key Takeaways

• The IB divides the world into three exam zones: A, B and C.

• Each zone follows its own exam timetable during the May and November exam sessions.

• Exam zones help ensure exams take place at suitable local times and help maintain exam security worldwide.

• Your school or IB coordinator will confirm your exam timetable and exam zone.

What Are IB Exam Zones?

IB exam zones are regional groupings used by the International Baccalaureate (opens in a new tab) to organise exam schedules for schools around the world.

Because IB students sit exams across many different countries and time zones, it would be difficult for all students to sit the same exam at exactly the same time. Instead, the IB divides schools into several exam zones and publishes separate exam schedules for each zone.

These zones appear on official IB exam timetables as Zone A, Zone B, and Zone C. Each zone follows a timetable designed for schools in that region, allowing exams to take place at suitable local times while helping protect the security of exam papers.

Although the exam papers assess the same content and follow the same structure, the timetable for each zone may vary slightly to accommodate global time differences.

The Three IB Exam Zones

The International Baccalaureate divides the world into three exam zones, which are labelled Zone A, Zone B and Zone C on official exam timetables. 

Each zone groups together schools from broadly similar regions so that exams can be scheduled at suitable local times. This system helps the IB manage exam sessions across thousands of schools worldwide.

Your school will belong to one of these zones, and your exam schedule will follow the timetable for that zone. The exact exam dates and times for each zone are published in the official IB examination schedule (opens in a new tab) for the relevant exam session.

Zone A (Americas)

Zone A covers schools across the Americas, including North America, Central America, South America and the Caribbean.

Schools in this zone follow the Zone A exam timetable published by the IB for each exam session. As with other zones, exams usually take place during morning or afternoon sessions at the school.

The exact start times and exam arrangements are confirmed by your school’s IB coordinator, who will provide the official timetable for your exams.

Zone B (Europe, Africa, Middle East)

Zone B includes schools across Europe, Africa and the Middle East. Countries in this zone include the United Kingdom and many countries across Europe, Africa and the Middle East.

Many IB schools in this zone follow exam schedules that align closely with European time zones. As with other zones, exams usually take place in either morning or afternoon sessions.

Your school will confirm the exact start times and exam schedule based on the official timetable for this zone.

Zone C (Asia-Pacific)

Zone C covers the Asia-Pacific region, including East Asia, Southeast Asia and Oceania. Countries commonly included in this zone include Japan, China, Singapore, Australia and New Zealand.

Schools in this zone follow a timetable designed for time zones across Asia and the Pacific region. Exams typically take place during morning or afternoon sessions, depending on the exam schedule.

Students should follow the exam timetable provided by their school or IB coordinator, which will conform to the official timetable for this zone.

Why Do IB Exam Zones Exist?

IB exam zones help ensure that exams are fair and secure for students worldwide.

The International Baccalaureate runs exams across thousands of schools in many countries. It would be difficult for every student to sit the same exam at exactly the same time. The zone system allows the IB to organise exam sessions so that schools in similar regions can follow a timetable that works for their local time.

Exam zones also help protect the integrity of the exam process. By carefully scheduling exams across different regions, the IB reduces the risk of exam content being shared before other students have taken the test.

This system helps ensure that IB exams are administered fairly and consistently across all participating schools.

How to Find Out Which Exam Zone You're In

Most students do not need to determine their IB exam zone themselves. Your school or IB coordinator will provide your official exam timetable, which already reflects the correct exam zone for your school.

If you want to confirm your exam zone, you can:

• check the IB examination schedule provided by your school

• ask your IB coordinator or exams officer

• look for the zone label (A, B or C) on the official exam timetable

Your school will ensure that your exams follow the correct timetable for your region, so the most important thing is to follow the schedule provided by your school.

What Time Do IB Exams Start in Each Zone?

IB exams normally take place during one of two standard exam sessions each day:

• Morning session

• Afternoon session

The exact local start time may vary slightly between schools, but most exams begin at similar times within each zone.

The official exam timetable provided by your school will show whether each exam takes place in the morning or afternoon session. Your school will confirm the specific start times that apply to you. 

Students are usually asked to arrive well before the exam begins so there is enough time for exam instructions and administrative checks.

Preparing well in advance can make exam day much less stressful. Our IB revision resources can help you review key topics and practise exam-style questions before your exams.

Are IB Exam Papers Different in Each Zone?

Students in different IB exam zones may sit different versions of the same exam paper.

These papers are designed to assess the same syllabus content and skills, and they follow the same exam format and mark scheme. However, the questions themselves may vary slightly between zones.

This approach helps the International Baccalaureate protect the security and fairness of the exam process, since exams take place at different times around the world.

Even if the exam questions differ, all versions of the paper are designed to ensure that students are assessed to the same standard.

IB Exam Zones and Results

IB exam zones do not affect when students receive their results.

Results for the May exam session are typically released in early July, while results for the November exam session are usually released in mid-December.

Students around the world normally receive their results on the same official results release date, regardless of which exam zone they are in.

Your school will confirm how and when you can access your results through the IB results portal. Find out further details in our guide to IB results day.

Frequently Asked Questions

Do November exam sessions have the same zones as May sessions?

Yes. The IB uses the same three exam zones (A, B and C) for both the May and November exam sessions. This helps maintain a consistent global exam structure throughout the year.

Are IB exam zones the same as regular time zones?

No. IB exam zones are regional groupings, not individual time zones. Each zone includes schools across several countries and time zones, and they follow the exam timetable assigned to that zone.

Do online IB exams use the same zone system?

Most IB exams are taken in supervised exam settings at school. When exams are scheduled globally, the IB continues to organise exam timetables using the same zone structure to manage exams across different regions.

Final Thoughts

IB exam zones help the International Baccalaureate organise exam sessions for students around the world. By dividing schools into regional zones, the IB can run exams securely and fairly across many different countries and time zones.

While the zone system may seem complicated at first, most students simply need to follow the exam timetable provided by their school. Your IB coordinator will confirm your exam schedule and ensure you have the correct information for your exams.

Understanding how exam zones work can make it easier to interpret your exam timetable and prepare confidently for your IB exams.

References:

• The IB by region | International Baccalaureate (opens in a new tab)

• IB May 2026 examination schedule FINAL VERSION All exam zones (A, B, C) (opens in a new tab)

• Assessment FAQ - International Baccalaureate® (opens in a new tab)