we are having a party at eight o'clock in the afternoon on New Year's Day.这句话对吗?

问题描述:

we are having a party at eight o'clock in the afternoon on New Year's Day.这句话对吗?

(如果表示“计划中即将举办”,可改为:
We (are going to have) a party at eight o'clock in the evening (晚八点已经不是afternoon 了)on the New Year's Day.
如果说新年那晚8点我们正在开晚会.== 应该是过去进行时,或将来进行时
We were having a party at eight o'clock in the evening the last New Year's Day.(上个新年)
We will be having a party at eight o'clock in the evening on the coming New Year's Day.(即将到来的新年)