Fall Equinox 2024 Time Zone. In different time zones, the date of the equinox may differ by a day, so it is important to indicate your exact location. December 21, 2024 at 1:20 am pst.

In different time zones, the date of the equinox may differ by a day, so it is important to indicate your exact location. Pacific daylight time) autumn begins astronomically in the.