Consider the following statements about Time Zones: 1. Russia has as many as eleven standard times. 2. The earth has been divided into twelve time zones of two hours each. 3. Each time zone covers 30° of longitude. Which of the statements given above is/are correct?

The correct option is (a). Explanation Standard time zones are established based on the Earth's rotation and longitudinal divisions. The Earth rotates 360° in approximately 24 hours, which forms the basis for calculating time differences across the globe. - Statement 1 is Correct: Due to its vast longitudinal extent from west to east, Russia spans a significant portion of the globe. Consequently, it has adopted eleven standard time zones to facilitate administration and daily life. - Statement 2 is Incorrect: The Earth is divided into 24 time zones, not twelve. Since the Earth completes one full rotation (360°) in 24 hours, the standard division is based on hourly intervals. - Statement 3 is Incorrect: Each time zone corresponds to one hour of rotation. Mathematically, dividing 360° by 24 hours results in each time zone covering 15° of longitude ($360^\circ / 24 = 15^\circ$), rather than 30°. Key Takeaway: The international standard divides the Earth into 24 time zones, each spanning 15° of longitude and representing a one-hour time difference. Large countries like Russia and the USA often utilize multiple time zones.

NCERT Class 6 Geography — Chapter 1: Globe: Latitudes and Longitudes

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Consider the following statements about Time Zones:

Russia has as many as eleven standard times.
The earth has been divided into twelve time zones of two hours each.
Each time zone covers 30° of longitude.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (a).

Explanation

Standard time zones are established based on the Earth's rotation and longitudinal divisions. The Earth rotates 360° in approximately 24 hours, which forms the basis for calculating time differences across the globe.

Statement 1 is Correct: Due to its vast longitudinal extent from west to east, Russia spans a significant portion of the globe. Consequently, it has adopted eleven standard time zones to facilitate administration and daily life.
Statement 2 is Incorrect: The Earth is divided into 24 time zones, not twelve. Since the Earth completes one full rotation (360°) in 24 hours, the standard division is based on hourly intervals.
Statement 3 is Incorrect: Each time zone corresponds to one hour of rotation. Mathematically, dividing 360° by 24 hours results in each time zone covering 15° of longitude ($360^\circ / 24 = 15^\circ$), rather than 30°.

Key Takeaway: The international standard divides the Earth into 24 time zones, each spanning 15° of longitude and representing a one-hour time difference. Large countries like Russia and the USA often utilize multiple time zones.

Your note

More from Chapter 1: Globe: Latitudes and Longitudes

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Consider the following statements regarding the Globe: 1. It is a true miniature model of the Earth. 2. On a globe, countries and continents are shown in their correct size, but oceans are not. 3. The globe is fixed and cannot be rotated. Which of the statements given above is/are correct?

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With reference to the axis of the Earth, consider the following statements: 1. The axis is a real needle passing through the North and South Poles. 2. The Earth moves around its axis from West to East. 3. The axis is an imaginary line. Which of the statements given above is/are correct?

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The correct option is (a).

Explanation

Statement 1 is Correct: Due to its vast longitudinal extent from west to east, Russia spans a significant portion of the globe. Consequently, it has adopted eleven standard time zones to facilitate administration and daily life.
Statement 2 is Incorrect: The Earth is divided into 24 time zones, not twelve. Since the Earth completes one full rotation (360°) in 24 hours, the standard division is based on hourly intervals.
Statement 3 is Incorrect: Each time zone corresponds to one hour of rotation. Mathematically, dividing 360° by 24 hours results in each time zone covering 15° of longitude ($360^\circ / 24 = 15^\circ$), rather than 30°.