First Day Of Seasons Exclusive <2026 Edition>

The first day of fall (September 22 or 23) is a period of cooling and "evening out." Like the spring equinox, the features nearly equal day and night.

Use (not meteorological):

# Pseudocode def next_season_start(now, hemisphere): events = get_equinoxes_and_solstices(now.year, now.year+1) for date, season_name in events: if date > now: return "season": season_name, "datetime": date, "days_until": (date-now).days first day of seasons

| User action | Response | |-------------|----------| | Open feature | See next season start + countdown | | Tap calendar icon | Add to system calendar | | Share | Generate text: “Spring starts Mar 20 at 10:46 AM” | | See details | Tooltip explaining equinox/solstice | | Southern user | Flip all seasons + dates (e.g., Autumn equinox in March) | The first day of fall (September 22 or

The "first day of the seasons" refers to the transition points in Earth's orbit where light and temperature shifts trigger profound biological and atmospheric changes. While we often use calendar dates, a of these transitions is the thermal lag , where the "official" first day of a season—defined by light—doesn't match the temperature extremes we feel until weeks later. The Two Ways Seasons Start The Two Ways Seasons Start For each upcoming

For each upcoming season change: