Solar eclipse on September 21: Timings, visibility, and all other details

Updated on 23-Jul-2025
HIGHLIGHTS

A partial solar eclipse will occur on September 21, lasting over 4 hours, peaking at 19:41 UTC.

The eclipse can be seen from New Zealand, eastern Australia, Pacific Islands, and Antarctica.

Due to time zone differences and positioning, the eclipse won't be observable from India.

Solar eclipses are among the most significant celestial events, possessing both scientific importance and profound cultural symbolism. For scientists, they offer rare opportunities to study the Sun’s outer atmosphere, the corona, and test key theories like Einstein’s general relativity. However, culturally, eclipses are often seen as a sign of change or powerful spiritual omens.

This year, Earth is set to witness two solar eclipses. The first, a partial eclipse, occurred on March 29, and the second will take place on September 21. The upcoming event is said to be visually striking, although it is not visible from India. Here’s everything that you need to know about a solar eclipse.

What is a solar eclipse?

A solar eclipse takes place when the Moon passes directly between the Sun and Earth, casting a shadow that partially or fully blocks sunlight in certain areas. These events happen at least twice a year when the Sun, Moon, and Earth align.

There are mainly two types of solar eclipses:

Partial Solar Eclipse

When the Moon covers only part of the Sun, observers outside the central path of the eclipse see the Sun in a crescent shape. This phenomenon is known as partial solar eclipse.

Total solar eclipse

When the Moon completely obscures the Sun’s face for a few moments, turning day into night and revealing the Sun’s corona, it is known as a total solar eclipse. Viewers must always use certified eclipse glasses or pinhole projectors to view the Sun safely, except during the brief totality phase of a total solar eclipse.

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September 21 partial eclipse: Time and where to watch it

The upcoming partial solar eclipse on September 21 will be visible from New Zealand, eastern Australia, parts of the Pacific Islands, and Antarctica.

Start time: 17:29 UTC (10:59 PM IST)

Peak: 19:41 UTC (1:11 AM IST on September 22)

End: 21:53 UTC (3:23 AM IST)

The eclipse will last about 4 hours and 24 minutes from start to finish. Unfortunately, since the event occurs overnight in Indian Standard Time, it will not be visible from India. Though not observable locally, the eclipse remains an essential celestial event for astronomers and skywatchers in the visibility zone.

Himani Jha

Himani Jha is a tech news writer at Digit. Passionate about smartphones and consumer technology, she has contributed to leading publications such as Times Network, Gadgets 360, and Hindustan Times Tech for the past five years. When not immersed in gadgets, she enjoys exploring the vibrant culinary scene, discovering new cafes and restaurants, and indulging in her love for fine literature and timeless music.

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