Query MongoDB for a datetime value less than NOW?

You can use $lte operator along with new Date() for this. Let us first create a collection with documents

>db.dateTimeValueLessThanNowDemo.insertOne({"CustomerName":"Larry","CustomerProductName":"Product-1","ArrivalDate":new ISODate("2017-01-31")}); {    "acknowledged" : true,    "insertedId" : ObjectId("5ca1e8ab66324ffac2a7dc59") } >db.dateTimeValueLessThanNowDemo.insertOne({"CustomerName":"Mike","CustomerProductName":"Product-2","ArrivalDate":new ISODate("2019-04-01")}); {    "acknowledged" : true,    "insertedId" : ObjectId("5ca1e8c166324ffac2a7dc5a") } >db.dateTimeValueLessThanNowDemo.insertOne({"CustomerName":"Chris","CustomerProductName":"Product-3","ArrivalDate":new ISODate("2019-03-31")}); {    "acknowledged" : true,    "insertedId" : ObjectId("5ca1e8d266324ffac2a7dc5b") } >db.dateTimeValueLessThanNowDemo.insertOne({"CustomerName":"Robert","CustomerProductName":"Product-4","ArrivalDate":new ISODate("2019-04-02")}); {    "acknowledged" : true,    "insertedId" : ObjectId("5ca1e8e766324ffac2a7dc5c") }

Following is the query to display all documents from a collection with the help of find() method

> db.dateTimeValueLessThanNowDemo.find().pretty();

This will produce the following output

{    "_id" : ObjectId("5ca1e8c166324ffac2a7dc5a"),    "CustomerName" : "Mike",    "CustomerProductName" : "Product-2",    "ArrivalDate" : ISODate("2019-04-01T00:00:00Z") } {    "_id" : ObjectId("5ca1e8d266324ffac2a7dc5b"),    "CustomerName" : "Chris",    "CustomerProductName" : "Product-3",    "ArrivalDate" : ISODate("2019-03-31T00:00:00Z") } {    "_id" : ObjectId("5ca1e8e766324ffac2a7dc5c"),    "CustomerName" : "Robert",    "CustomerProductName" : "Product-4",    "ArrivalDate" : ISODate("2019-04-02T00:00:00Z") }

Following is the query for datetime value less than NOW. Let’s say the current date is 2019-04-02

> db.dateTimeValueLessThanNowDemo.find({ ArrivalDate: { $lte: new Date() } }).pretty();

This will produce the following output

{    "_id" : ObjectId("5ca1e8ab66324ffac2a7dc59"),    "CustomerName" : "Larry",    "CustomerProductName" : "Product-1",    "ArrivalDate" : ISODate("2017-01-31T00:00:00Z") } {    "_id" : ObjectId("5ca1e8c166324ffac2a7dc5a"),    "CustomerName" : "Mike",    "CustomerProductName" : "Product-2",    "ArrivalDate" : ISODate("2019-04-01T00:00:00Z") } {    "_id" : ObjectId("5ca1e8d266324ffac2a7dc5b"),    "CustomerName" : "Chris",    "CustomerProductName" : "Product-3",    "ArrivalDate" : ISODate("2019-03-31T00:00:00Z") }