When will Hengyang be in early spring tomorrow?

"Cold goes with the night and spring comes at five o'clock."

On February 4th 17: 46 Beijing time, the first "beginning of spring" among the 24 solar terms of the lunar calendar will be ushered in.

Beginning of spring is both a solar term and a festival. On this day, China people have beautiful customs of "welcoming the spring", "playing spring" and "biting spring".