The days will begin to last longer and nights get shorter after the vernal equinox on March 20, the day that daylight and darkness are almost of equal length.
According to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), vernal equinox is an astronomical event that marks the beginning of spring in the northern hemisphere and autumn in the southern hemisphere.
On the day of the equinox, PAGASA said night and day are about the same length in both hemispheres.
Every year, equal lengths of day and night happen twice a year during the vernal and autumnal equinox, on March and September, respectively.
In the Philippines, days following the vernal equinox mark longer daytime and shorter nighttime.
The Philippines is above the equator and part of the northern hemisphere. Although there is no spring season in the country, warm and dry “summer” season” prevails from March until May.
PAGASA has yet to officially declare the onset of warm and dry season this year. Last year, it was declared on March 22. (Ellalyn De Vera-Ruiz)
