Query on Month of Date in Mongo

Find the Employee based on month of date using $month operator under Employee_Detail collection.

Example:

[
{ 
    "_id" : ObjectId("60179dd62381fc69d5f1c5a0"), 
    "Emp_Name" : "Jatin", 
    "Emp_Age" : NumberInt(24), 
    "Emp_Salary" : NumberInt(34000), 
    "Emp_Grade" : "C", 
    "Emp_Joining_Date" : ISODate("2020-07-03T18:30:00.000+0000")
}
{ 
    "_id" : ObjectId("60179dd62381fc69d5f1c5a1"), 
    "Emp_Name" : "Terens", 
    "Emp_Age" : NumberInt(27), 
    "Emp_Salary" : NumberInt(34000), 
    "Emp_Grade" : "D", 
    "Emp_Joining_Date" : ISODate("2020-04-03T18:30:00.000+0000")
}
{ 
    "_id" : ObjectId("60179dd62381fc69d5f1c5a2"), 
    "Emp_Name" : "Manu", 
    "Emp_Age" : NumberInt(21), 
    "Emp_Salary" : NumberInt(34000), 
    "Emp_Grade" : "A", 
    "Emp_Joining_Date" : ISODate("2020-07-03T18:30:00.000+0000")
}
{ 
    "_id" : ObjectId("60179dd62381fc69d5f1c5a3"), 
    "Emp_Name" : "Sagun", 
    "Emp_Age" : NumberInt(20), 
    "Emp_Salary" : NumberInt(34000), 
    "Emp_Grade" : "B", 
    "Emp_Joining_Date" : ISODate("2020-01-03T18:30:00.000+0000")
}
{ 
    "_id" : ObjectId("60179dd62381fc69d5f1c5a4"), 
    "Emp_Name" : "Pankaj", 
    "Emp_Age" : NumberInt(60), 
    "Emp_Salary" : NumberInt(34000), 
    "Emp_Grade" : "D", 
    "Emp_Joining_Date" : ISODate("2020-02-03T18:30:00.000+0000")
}
]

Approach

Query: To  find employee having joining month after 5.

db.Employee_Detail.aggregate([
    {$match:{"Emp_Salary":{$gte:25000}}},
    {$project:{"Emp_Name":1,"Emp_Age":1,"monthOfJoining":{"$month":"$Emp_Joining_Date"}}},
    {$match:{"monthOfJoining":{$gte:6}}}
    ]);

Output: 

[
     { 
        "_id" : ObjectId("60179dd62381fc69d5f1c5a0"), 
        "Emp_Name" : "Jatin", 
        "Emp_Age" : NumberInt(24), 
        "monthOfJoining" : NumberInt(7)
    }
    
    { 
        "_id" : ObjectId("60179dd62381fc69d5f1c5a2"), 
        "Emp_Name" : "Manu", 
        "Emp_Age" : NumberInt(21), 
        "monthOfJoining" : NumberInt(7)
    }
]