As for the background time of the poem. It's not February or March, it should be autumn.
The exact time when Zhang Ji wrote a night-mooring near maple bridge is also controversial. Written during the An Shi Rebellion. In 755 AD, the Anshi Rebellion broke out, and Zhang Ji took refuge in the south, wandering in Jianghuai, and his whereabouts were in Wuzhong area. It is also said that this poem was written by Zhang Jizuo on his way out of Suzhou by boat after he failed in the senior high school entrance examination in Beijing. Anyway, it is certain that Zhang Ji was in a bad mood when he wrote this poem. In the autumn night in the south of the Yangtze River, the loneliness of the journey reached its extreme in the cold autumn night. The moon sets, the frost fills the sky, the maple leaves by the river, the fisherman's lamp, and the long sound that comes through time and space. This beautiful and lonely autumn night in the south of the Yangtze River makes the wanderer feel sad.