The Sun rose at 7:23 a.m. Sunday morning and set at 7:23 p.m. marking the equilux, greek for "equal light". This is the day when the time the Sun is above the horizon is nearest exactly 12 hours.
Here in Raleigh, sunrise and sunset were separated by exactly 11 hours 59 minutes 43 seconds. The next equilux will happen on September 26 when that time will be just 51 seconds short of exactly 12 hours.
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Day and night will be pretty close to equal all week, leading up to the March equinox, greek for equal night, on Thursday March 20 at exactly 5:01 AM ET.
The next equilux occurs September 26, following the autumnal equinox on September 22, when the Sun will be above the horizon for 11 hrs 59 min 9 sec.
If you noticed the four day pattern between equilux and equinox, that's a Raleigh thing. More accurately it is a between 30 and 40 degrees north latitude thing. Whie the Equinox is a celestial event, equilux is a more terrestial one. When occurs depends on your latitude.
Sunday was the equilux day the Carolinas and the rest of the mid-Atlantic, Florida saw it yesterday, and New England states will be nearest to equal day and night on Monday..
Huntsville, Alabama saw exactly, to the second, 12 hours of sunlight today.