Equinox Occurs At This Hour Today! Poem by Sylvia Frances Chan

March equinox and September equinox:
names referring to the months of the year they occur,
with no ambiguity as to which hemisphere is the context.

They are still not universal, however,
as not all cultures use a solar-based calendar
where the equinoxes occur every year in the same month
(as they do not in the Islamic calendar and Hebrew calendar,
for example) .

Although the terms have become very common
in the 21st century, they were sometimes used
at least as long ago as the mid-20th century.

Northward equinox and southward equinox:
names referring to the apparent direction
of motion of the Sun.

The northward equinox occurs in March
when the sun crosses the equator
from south to north.

The southward equinox occurs in September
when the sun crosses the equator
from north to south.

These terms can be used unambiguously
for other planets.
They are rarely seen,
although were first proposed
over 100 years ago.

First Point of Aries
and first point of Libra:
names referring to the astrological signs
the sun is entering.

Due to the precession of the equinoxes,
however, the constellations where the equinoxes
are currently located are

Pisces and Virgo, respectively.

AD. The 20 March 2018 at 16.15 hours P.M.
West-European Time

AD. The Northward Equinox
the 20 March 2018 at 16.15 hrs P.M.