NCERT Class 11 Geography Practical Chapter 3, titled अक्षांश, देशांतर और समय (Latitude, Longitude and Time), focuses on the relationship between Earth’s grid system and time calculation. This chapter explains how lines of latitude and longitude help us locate places and how Earth’s rotation affects time differences across regions. It is a very important chapter for practical geography because it connects maps with real-world timekeeping.
I am writing about this chapter because many students struggle to connect latitude–longitude concepts with time calculations. Once you understand the basic logic, this chapter becomes simple and even interesting. It is also a scoring area in practical and theory exams. Questions from this chapter are often asked in school assessments and competitive exams, so having clear notes and the official PDF can make preparation much easier.
What You Learn in Chapter 3
This chapter introduces students to the Earth’s coordinate system and how it is used in practical geography.
- Meaning and importance of latitude
- Meaning and importance of longitude
- Prime Meridian and Equator
- Local time and standard time
- Relationship between longitude and time
Understanding Latitude and Longitude in Simple Words
Latitude lines run east–west and measure how far a place is north or south of the Equator.
Longitude lines run north–south and measure how far a place is east or west of the Prime Meridian.
For example:
- Delhi is located at about 28° North latitude and 77° East longitude.
Link Between Longitude and Time
The Earth rotates 360° in 24 hours.
That means:
- 15° longitude = 1 hour
- 1° longitude = 4 minutes
If one place is 15° east of another, its local time will be one hour ahead.
Why This Chapter Is Important for Practical Exams
Students learn to:
- Locate places using coordinates
- Calculate time difference between two longitudes
- Understand Indian Standard Time
- Solve numerical problems accurately
These skills are essential for map work and geography practical tests.
How to Download NCERT Class 11 Geography Practical Chapter 3 PDF
Students can download the official PDF from the NCERT website by following these steps:
- Visit the official NCERT website
- Click on Textbooks
- Select Class 11
- Choose Geography – Bhugol Main Prayogatmak Karya
- Open Chapter 3: अक्षांश, देशांतर और समय
- Download the PDF
Always rely on the official NCERT source to avoid outdated or incorrect material.


















