What is the date when day and night are equal?

A. March 21 and December 24
B. January 14 and September 23
C. March 20 and September 23
D. January 14 and June 22

Submitted by: Mansoor Ahmed Suhag

An equinox is commonly regarded as the instant of time when the plane (extended indefinitely in all directions) of Earth’s equator passes through the center of the Sun.[3] This occurs twice each year: around 20 March and 23 September. In other words, it is the moment at which the center of the visible Sun is directly above the Equator.

The word is derived from the Latin aequinoctium, from aequus (equal) and nox (genitive noctis) (night). On the day of an equinox, daytime and nighttime are of approximately equal duration all over the planet.
What is the date when day and night are equal?

10 Comments

Faraz Ahmed on 06/07/2019 12:48 AM
it’s not 20 march. right answer is 21st march and 23rd September. CORRECT THIS
- admin on 06/07/2019 1:02 AM
  Dear Faraz please explain it
  - Mansoor Ahmed Suhag on 22/07/2019 8:02 PM
    Yes it is 21st march and 23rd September. It was typing error. Admin kindly correct it. Thanks
Abdul Wahab on 07/07/2019 5:36 PM
Vernal Equinox happens sometimes on 20 March & sometimes on 21 March..
2019’s Vernal equinox happened on 21st March..while
2018’s 20 March
2017’s 20 March
2016’s 20 March
2015’s 21 March…so both options are right but when specific year’s equinox asked; u have to answer accordingly.
Rizwan on 11/07/2019 12:38 AM
Yes its 21 march not 20…
Irfan Hameed Joyia on 22/08/2019 10:02 AM
yes it is 21st March and 23rd of Sep.
Altaf Hussain Brohi on 31/01/2020 9:23 PM
Right Answer is 21 Mach and 21 September,kindly Admin Correct the error.
- Altaf Hussain Brohi on 31/01/2020 9:26 PM
  Sorry 23 september.

What is the date when day and night are equal?

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10 Comments