The Iranian calendar is a solar calendar, meaning time is determined, through astronomical observations, by Earth’s movement around the sun. So, the first day of the year always kicks off with the ...

The spring equinox and vernal equinox are the same thing ... The Eastern Orthodox Church uses the Julian calendar, a solar calendar that was used by the Roman Empire. This year, Easter and ...

Thursday marks the vernal equinox, or the first day of spring, in the northern hemisphere — even if the weather in Michigan doesn't seem particularly "springy" this week. While meteorological spring ...

By that calendar, spring starts on March 1, summer on June 1, fall on Sept. 1 and winter on Dec. 1. Spring is here — officially, at least. The vernal equinox arrived on Thursday, marking the ...

Neither the vernal equinox nor the Gregorian calendar have any direct relationship to Houston’s weather, and Mother Nature has a habit of defying expectations whenever possible. “Spring ...

The vernal equinox arrives on Thursday ... They break down the year into three-month seasons based on annual temperature cycles. By that calendar, spring starts on March 1, summer on June 1, fall on ...