In contrast to
The last day was fine, in contrast to the rest days of my stay.
We can also use "while", "instead of" and "unlike" in this sentence. It indicates the state of being different.
Unlike our competitors, we offer a 24-hour service.
Instead of last year's performance, this year we have done very well.
Refs
idiom, 14-02-02 00:47, 14-02-02 00:49, Yosei