How to find Records between startDate and endDate

How to find Records between startDate and endDate - Nodejs, mongodb

There are 4 records in my database.

{"_id":{"$oid":"6200b15e91f762376cd43ac3"},"startDate":{"$date":"2021-01-01T00:00:00.000Z"},"endDate":{"$date":"2021-01-28T18:29:59.059Z"},"__v":0}
{"_id":{"$oid":"6200b15e91f762376cd43ac4"},"startDate":{"$date":"2021-01-01T00:00:00.000Z"},"endDate":{"$date":"2021-01-23T18:29:59.059Z"},"__v":0}
{"_id":{"$oid":"6200b15e91f762376cd43ac5"},"startDate":{"$date":"2021-01-05T00:00:00.000Z"},"endDate":{"$date":"2021-01-28T18:29:59.059Z"},"__v":0}
{"_id":{"$oid":"6200b15e91f762376cd43ac6"},"startDate":{"$date":"2021-01-05T00:00:00.000Z"},"endDate":{"$date":"2021-01-25T18:29:59.059Z"},"__v":0}

My UI looks like this:

My mongodb query is as follows: (what I have tried)

data.find({
                    "$or": [
                      {"startDate": {"$gte": startDate}},
                      {"endDate": {"$lte": endDate}}
                    ]
                  });

When is search using the query above, I get only 1 record, That is: {"_id":{"$oid":"6200b15e91f762376cd43ac3"},"startDate":{"$date":"2021-01-01T00:00:00.000Z"},"endDate":{"$date":"2021-01-28T18:29:59.059Z"},"__v":0} instead of all 4.

While sending from UI, I convert it is: req.query:

dateStart: '2021-01-01',
dateEnd: '2021-01-28',

And then convert it to new Date() format:

let startDate = new Date(req.query.dateStart); 
let endDate = new Date(req.query.dateEnd);

I don't know what wrong I am going in the query. Need Help! Thank you!

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