Q. Daylight saving time (DST) is the practice of advancing clocks during summer months by one hour. Why is Daylight saving time practice prevalent in many temperate countries?
Select the correct answer using the codes given below:
Q. Daylight saving time (DST) is the practice of advancing clocks during summer months by one hour. Why is Daylight saving time practice prevalent in many temperate countries?
Select the correct answer using the codes given below:
The correct option is C
2 and 3 only
Explanation:
Statement 1 is incorrect: Daytime saving has nothing to do with increase in the working hours. The working hours remain the same but the shift becomes one hour ahead.
Statements 2 and 3 are correct: The Daylight saving time (DST) or summer time is the practice of advancing clocks during summer months by one hour so that evening daylight lasts an hour longer i.e fully utilizing the surplus sunlight in summers while compensating the short day length in winters. It is to conserve energy by utilizing the day light and reduce evening use of incandescent lighting. Typically, regions with summer time adjust clocks forward one hour close to the start of spring and adjust them backward in the autumn to standard time to compensate for variation in day length experienced from season to season.
2 and 3 only
Explanation:
Statement 1 is incorrect: Daytime saving has nothing to do with increase in the working hours. The working hours remain the same but the shift becomes one hour ahead.
Statements 2 and 3 are correct: The Daylight saving time (DST) or summer time is the practice of advancing clocks during summer months by one hour so that evening daylight lasts an hour longer i.e fully utilizing the surplus sunlight in summers while compensating the short day length in winters. It is to conserve energy by utilizing the day light and reduce evening use of incandescent lighting. Typically, regions with summer time adjust clocks forward one hour close to the start of spring and adjust them backward in the autumn to standard time to compensate for variation in day length experienced from season to season.
