The phrase "a bizarre day" is correct and usable in written English.
You can use it to describe a day that was strange, unusual, or out of the ordinary.
Example: "Yesterday was truly a bizarre day; nothing went as planned, and I encountered the most unexpected situations."
Alternatives: "an odd day" or "a strange day."
Dvorak's Eighth Symphony was uneventful and, it seemed after a bizarre day and evening, unimportant.
It's a bizarre day of cricket all round and 16 wickets sums it up.
There were plenty of messages floating around during a bizarre day at Jets camp.
This was a bizarre day for the United States in what had been an odd Olympic competition.
The sentence capped a bizarre day in which Sante and Kenneth Kimes railed against their own lawyers, the police, the district attorney and the judge in meandering statements.
With heavy rain in the morning, followed by 35-mile-an-hour wind gusts that made flagsticks and players shiver, the stage was set for a bizarre day at the British Open.
In a bizarre Saturday press conference, Virginia Gov. Ralph Northam (D) announced that he would not resign over a racist photo from his medical school yearbook.
I've been watching sport since my dad first dragged me along to watch Leicester City against Fulham in 1974 and if - in the intervening 34 years - I've experienced a more bizarre day in a sports arena than Saturday in the Taekwondo Hall in Beijing then it's temporarily escaped my memory.
"This has nothing to do with my character," Whitman insisted to reporters at one point during a truly bizarre day in the campaign.
This was a splendid and bizarre day at Churchill Downs.
But the public was so nonchalant and the story such a blip that probably few remember the bizarre happenings of that bizarre day in late July...
