As such hours as we know them were called equinoctial hours.那一天被叫做昼夜平分日(equinoctialhours)....

equinoctial的音标：equinoctial的英式发音音标为：[ˌi:kwɪ'nɒkʃl]equinoctial的美式发音音标为：[ˌikwɪ'nɑkʃl]...

adj.春分或秋分的，赤道的n.春分或秋分时的暴风雨...