At 03:06 AM UTC, the Northern Hemisphere will pass through its spring (vernal) equinox. This will be the autumn equinox for the Southern Hemisphere. In North America, this is 11:06 pm EDT/8:06 pm PDT on the 19th.
Do you celebrate the equinox? If so, how?
I am enjoying the sun, and I will take a walk and look for signs of spring. I will have a small ritual surrounding the precise moment of equinox and focus on balance and reflecting on the time from the two bracketing solstices.