Xujiahui district促销时间是12月31日21时至23时。的翻译：Xujiahui district promotional time was December 31 to 23 o'clock. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

xujiahui district promotion time is at 21:00 on December 31 to 23 pm.

Xujiahui district promotional time was December 31 to 23 o'clock.

Xujiahui the district promotion time is on December 31 21 o'clock to 23 o'clock.

Xujiahui district promotional time is December 21 from 31 am to 23 am.

Xujiahui district promotional time was December 31 to 23 o'clock.