Database
[{"inicio":"2023-06-22T09:15:57+06:30"},{"inicio":"2023-06-21T09:15:57+06:30"},{"inicio":"2023-06-20T09:15:57+06:30"},{"inicio":"2023-06-19T09:15:57+06:30"},{"inicio":"2023-06-18T09:15:57+06:30"},]
Query
db.collection.aggregate({"$project":{"fecha":{"$dateToString":{"date":{"$toDate":"$inicio"},"format":"%d-%m-%Y"}}}})