Kasibul

Ing kasibul (spring king Ingles, primavera neng Castila) metung ya kareng apat a panaun kareng mangarimlang lugal, ing pilatan ning karimlan ampo ning kaleldo. Deng kayang aldo alus labi lang aduang oras, a kakaba, uling malapit ya king panaun ning equinox. King pangulu nang dake ning yatu (Northern Hemisphere), manibat Marzo anggang Mayo ing kasibul, at king mauli nang dake ning yatu (Southern Hemisphere), manibat Setiembre ya anggang Noviembre. Ing kasibul murin ing panaun ning bagiu kareng adua nang dake ning yatu, oneng mas atrasadu ya king pangulung Dayatmalat a Atlantico kesa kareng aliwang dayatmalat.

Dalerayan

Suglung palual 

 Word Lore
 Online Etymology Dictionary
 Glossary of Meteorology
 Solstice, Equinox & Cross-Quarter Moments for 2009 and other years, for several timezones
 Earth's Seasons, Equinoxes, Solstices, Perihelion, and Aphelion, 2000–2020  (from the United States Naval Observatory's Astronomical Applications Department)
 Seasons and Seasonal Cusps as Pagan and Religious Holidays (from Archaeoastronomy)
 What day does spring start? (BBC,UK News Magazine)

Spring