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Longest day/night is experienced during a year in the

June 1, 2025 by rawan239

Longest day/night is experienced during a year in the

Equator

Pole

Tropics of Cancer/Capricorn

Arctic/Antarctic Circle

This question was previously asked in

UPSC CISF-AC-EXE – 2017

Download PDF Attempt Online

The length of day and night varies significantly with latitude due to the tilt of the Earth’s axis relative to its orbital plane. The maximum variation occurs at the poles (North and South Poles). At the poles, during summer, there is continuous daylight for approximately six months (polar day), and during winter, there is continuous darkness for approximately six months (polar night). This represents the absolute extreme in terms of the duration of continuous day or night experienced during a year. The question asks for the location where the “Longest day/night is experienced during a year”, which refers to the maximum possible duration of either daylight or darkness.

– The Earth’s axial tilt causes seasons and variation in day/night length with latitude.
– The variation is minimal at the equator (always around 12 hours day/night).
– The variation increases towards the poles.
– The poles experience the most extreme variations, including prolonged periods of continuous daylight or darkness.

At the Arctic and Antarctic Circles (approx 66.5° latitude), the sun does not set on the summer solstice (24 hours of daylight) and does not rise on the winter solstice (24 hours of darkness). However, this is a 24-hour period, whereas at the poles, the period extends to roughly six months. Thus, the pole experiences the *longest* continuous day or night period.

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