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Manila Bulletin devider Philippines devider National devider PH to have longer days after vernal equinox

PH to have longer days after vernal equinox

Published Mar 19, 2021 09:31 am

The days will begin to last longer than nights after the vernal equinox on March 20--the day that daylight and nighttime are almost of equal length.

(TARA YAP / FILE PHOTO / MANILA BULLETIN)

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said equinox, also known as the "First Point of Aries," is an imaginary point in the sky where the ecliptic and the celestial equator meet.

"Due to the wobbling motion of the Earth known as precession, the First Point of Aries now lies in Pisces. The sun reaches this point on March 20 at 6 p.m. (Philippine standard time), marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere," PAGASA explained.

It said that on the day of the equinox, night and day will be about the same length on the same latitude in both hemispheres.

Longer daylight hours will start days following the vernal equinox in the Philippines, which lies a little above the equator and belongs to the northern hemisphere.

While there is no spring season in the country, "warm and dry" season prevails from March until May.

PAGASA has yet to officially declare the end of northeast monsoon or "amihan" season and onset of warm and dry season this year.

Last year, it was declared on March 20.

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