Exact time and date of the March equinox and other seasons. When is the first day of Spring and when does each season start?

Dec 4, 2025 · Astronomically speaking, the first day of spring is marked by the spring equinox, which falls on March 19, 20, or 21. The equinox happens at the exact moment worldwide, …

March 20 marks the first day of spring, also known as the vernal equinox.

Mar 16, 2015 · Traditionally, we celebrate the first day of spring on March 21, but astronomers and calendar manufacturers alike now say that the spring season starts on March 20 in all …

Mar 19, 2025 · The “official” first day of spring is widely known as the vernal equinox. For 2025, the vernal equinox will commence on Thursday, March 20th, at 5:01 a.m. EDT (2:01 a.m. PDT).

Feb 28, 2025 · Meteorological spring starts on March 1 and runs through May 31 every year, regardless of the exact moment of the vernal equinox. This allows the seasons to be more …

Spring is the season between the last days of winter and the first days of summer, when the weather starts transitioning from colder days to warmer days and the temperature slowly rises.

By solar reckoning, Spring is held to begin 1 February until the first day of Summer on May Day, with the summer and winter solstices being marked as Midsummer and Midwinter respectively, …

Mar 18, 2025 · Spring starts March 20 and ends June 20 when summer begins. Spring officially begins Thursday, bringing longer daylight hours and a shift toward warmer temperatures as …

Mar 20, 2025 · Here's everything you need to know about the spring equinox, including when it occurs in 2025, what it is, what it means and why we celebrate it.