What`s the date today

What's the date today?今天是几号?这是一个询问日期的句型.注意和What day is it today?的区别.后者指“今天星期几?”.回答日期时,表示在某一天,用介词on,表示不含某一天的年,月,以及季节都有用介词in .例如：
"What's the date today?""It's May the first."
“今天是几号?”“今天是五月一号.”
"What day is it today?""Today is Sunday."
“今天是星期几?”“今天是星期天.”
I bought this bike in 1996.
我1996年买的这辆自行车.
所以回答Today is January 1即可.