Database
[{"_id":ObjectId("6218e63e4f9e4efbb05de2bf"),"name":"Toyota","rate":50,"fine":5,"datesBooked":[["2022-02-08","2022-02-14"],["2022-02-16","2022-02-18"],["2022-02-20","2022-02-22"],["2022-02-24","2022-02-25"],["2022-03-01","2022-03-02"],["2022-03-01","2022-03-02"]],"__v":0}]
Query
db.collection.update({},[{$set:{datesBooked:{$concatArrays:[{$slice:["$datesBooked",2]},{$slice:["$datesBooked",{$add:[1,2]},{$size:"$datesBooked"}]}]}}}])