Database
[{"date_array":[ISODate("2023-01-05T00:00:00Z"),ISODate("2023-01-06T00:00:00Z"),ISODate("2023-01-07T00:00:00Z"),ISODate("2023-01-08T00:00:00Z"),ISODate("2023-01-09T00:00:00Z")]}]
Query
db.collection.find({$expr:[{$in:[{$dateTrunc:{date:"$$NOW",unit:"day"}},"$date_array"]}]})