The phrase "a date where" is correct and usable in written English.
It can be used when referring to a specific date in the context of an event or situation.
Example: "I have a date where we will discuss the project details."
Alternatives: "a date on which" or "a date when".
I would not go to an event with a date where she might be.
For the revamped theater, Mr. Murphy said he'd like, above all, to see a place "where a guy can bring a date; where you can get a salad".
For her part, Kelly dashed off to a date, where she blew her chance at a healing good time by recounting the argument at length, complete with a barbed if imprecise impression of Bethenny.
She'd thought it was clear that she just didn't want to go on a date where she worked, but maybe he'd taken it more personally than that; maybe he'd suspected that she was ashamed to be seen with him.
Tell us your tale of a memorable experience with wine — perhaps a glass with a surprising taste at a restaurant meal or a date where wine played a special role.
At a swanky garden party, she meets Albert (the late James Gandolfini), and, though she's initially put off by his weight, she agrees to go on a date, where she finds him funny, charming, and similarly frightened at the prospect of his daughter going off to college.
It's the perfect setting for a power lunch (or a romantic date), where you can lounge and sip the restaurant's appropriately named Power Lunch cocktail.
The date is a voodoo date, where the voodoo priestess does a tarot reading to get the "truth" about the women.
A New York City mother said she recently took her kindergartner to a play date, where her daughter had fun but where she was the outcast among a gaggle of gossipy mothers.
It's like a blind date where the person brings his toothbrush".
It felt to him like "a bad date where you've had too much to drink".
