It's sports day nest week.这个句子正确吗?为什么不用将来时态?

问题描述:

It's sports day nest week.这个句子正确吗?为什么不用将来时态?
It's sports day next week

这是客观事实,不是打算计划做么事.跟例句一个意思.
It is teacher's day next week .