时节 (shíjié) means "season" or "time of year" and has a literary, poetic quality. It combines 时 (time) and 节 (segment/festival) and often appears in classical poetry and literary descriptions of weather or agricultural cycles. It is more evocative than the everyday word 季节.
清明时节雨纷纷,路上行人欲断魂。
Qīngmíng shíjié yǔ fēnfēn, lù shàng xíngrén yù duànhún.
During the Qingming season it rains one after another; travelers on the road are broken-hearted with sorrow.
这个时节的水果又甜又便宜。
Zhège shíjié de shuǐguǒ yòu tián yòu piányi.
Fruits in this season are both sweet and cheap.
收获的时节到了,农民们都很忙。
Shōuhuò de shíjié dào le, nóngmínmen dōu hěn máng.
The harvest season has arrived, and the farmers are all very busy.