The spring equinox – also called the vernal equinox – happens today at 09.37 UTC . This marks the beginning of the spring season in the Northern Hemisphere and the autumn season in the Southern Hemisphere. This is the day for big celebrations including the Nowruz, the Persian New Year, as well as for big phenomenons: For instance the sunset is at its fastest on this day – on no other day does it disappear behind the horizon so fast. Perhaps you can use the 30-second retrograde on the Open Gear ReSec Big Wave to time it? Photo andersmodig #chronoswiss #modernmechanical #equinox #persiannewyear