Top of the Equilux to you

March 17, 2023. Sunrise and Sunset 7:17 AM and 7:18 PM (by only a few seconds). San Francisco, CA. At this latitude today.
Equilux - Sunrise and Sunset dividing the day into equal parts of light and darkness--

The Equinox and first day of Spring is on Monday 3/20/23-- However, by then we here at this latitude will already have crossed the line into (incrementally) more light.
To find out when the Equilux will slice your day in half-- check out timeanddate.com and enter your location. Look for the day when the sun rises and sets 12 hours apart.