When was beginning of spring in 1979?

Gregorian calendar1February 4, 979, the eighth day of the first lunar month, the Year of the Tiger, and Sunday is the solar term in beginning of spring. Before handover to beginning of spring, the fire in the afternoon of 1978 belonged to the five elements of the sky in the Year of the Horse, and after handover to beginning of spring, it belonged to the fire in the five elements of the sky in the Year of the Sheep at 1979. Shun Song Qirui!