MongoDB: Only fetch documents created in the last 24hrs?

Question

I want to limit a query I'm making to only look in documents that were created in the past 24 hrs.

What is the best way to structure this query? How do I go about limiting based on date?

Answer 1

Add createdAt field, index it, then query

db.getCollection("COLLECTION_NAME").find({"createdAt":{$gt:new Date(Date.now() - 24*60*60 * 1000)}})

This will return all records younger than 86400 seconds.

Answer 2

If you're not using any other indexes and are using the default ObjectID as your _id, you can do the following:

var ObjectID = require('mongodb').ObjectID

db.collection.find({
  _id: {
    $gt: ObjectID.createFromTime(Date.now() / 1000 - 24*60*60)
  }
}, callback)

Answer 3

For anyone else landing here via google, you can do this in the mongo shell as follows:

db.collection.find({ $where: function () { return Date.now() - this._id.getTimestamp() < (24 * 60 * 60 * 1000)  }  })

Answer 4

Use this in mongoose

let ObjectId    = require('mongodb').ObjectID;

Property.find({
    _id: {
        $gt: ObjectId.createFromTime(Date.now() / 1000 - 24 * 60 * 60)
    }
}, (err, result) => {
    console.log(err || result);
});

Answer 5

first of all it would really help if you will provide people with a schema of your collection.

But just because it already 3 hours passed and no one replied I will try:

Suppose you have you entry and it has a field createdAt which is an ISODate:

{
somefield: "test",
createdAt: ISODate("2012-08-13T04:00:00Z")
}

So what you need to do is to put an index on this field

db.yourColl.ensureIndex({createdAt:1});

Then you get your current time in node.js substitute your 24 hours and get your value of start. (As far as I know there is no analog of NOW in mongdb. Right me someone if I am wrong.)

db.yourColl.find({
   createdAt: {
     $gte: start
   }
});

Answer 6

Hope this helps someone. I'm using pymongo to query last 24 hours of data. In my case I had to convert the current time into BSON timestamp.

First I had to import Bson timestamp:

from bson.timestamp import Timestamp

Then in my search query I did the following:

yesterday  = datetime.datetime.now() - datetime.timedelta(days=1)

findQuery = {
    "unix": {
        "$gte": Timestamp(int(yesterday.strftime("%s")),0)
     }
}

Answer 7

Starting in Mongo 5.0, it's a nice use case for the new $dateDiff aggregation operator:

// { "_id" : ObjectId("60c8f804fb832fe2f2011657") }
db.collection.aggregate([
  { $match: { $expr:
    { $lt: [{ $dateDiff: { startDate: "$_id", endDate: "$$NOW", unit: "hour" } }, 24 ]}
  }}
])
// { "_id" : ObjectId("60c8f804fb832fe2f2011657") } // if document created within the last 24 hours

---

A few things to note:

• Basically, we're $matching items for which the duration ($dateDiff) between their creation date (represented by their _id) and now ($$NOW) is less ($lt) than 24 hours.

• The start date is the $_id (ObjectId):

  • Indeed, an ObjectId contains the timestamp of its creation
  • And $dateDiff can accept an ObjectId as a temporal representation

• The end date is $$NOW, which is a variable that returns the current datetime value.

Answer 8

"TIME" is field which store timestamp

db.your_collection_name.find({"TIME":{'$lt': new Date(),'$gte':new Date(new Date().setDate(new Date().getDate()-1))}},{}).count();

Answer 9

Some solutions are outdate new Date() etc. This will work in 2022 with updated golang:

Remember to include time module

import (
    "time")

Will use basic minute with - operator. Below it means 24 hours multiply with 60 minutes and .Add actually subtracts with minus operator:

"$gt": time.Now().Add(-60 * 24 * time.Minute),

İnclude filters:

filter := bson.M{
            "$and": []bson.M{
        {
            "createdat": bson.M{
                "$gt": time.Now().Add(-60 * 24 * time.Minute),
            },
        },
        {
            "userid": userid,
        },
        }}

Make sure defer cureser

cursor, _ := todoCollection.Find(ctx, filter, findOptions)

    for cursor.Next(ctx) {
        var product models.ProductPost
        cursor.Decode(&product)
        products = append(products, product)
    }
    defer cursor.Close(ctx)

Get the length

fmt.Println(len(products))

Answer 10

await db.yourColl.find({
   "timestamp": {
       $lt: new Date(),
       $gte: new Date(new Date().setDate(new Date().getDate()-(24* 60 * 60 * 1000)))
   }
})

Works in my case

Answer 11

I had the same problem and after a lot of searches, the best solution that I found for fetching data from last X days is something like this:

let date_obj = new Date();
let requestedTime = new Date(new Date().setDate(date_obj.getDate() - day));
    
    db.collection.find({
      createdAt: {$gt: requestedTime}
    });

the day variable must be a numeric value of the number of days you want, for example: 1 for one day ago (last 24 hours), 2 for two days ago (last 48 hours), 30 for the last month, 60 for the last two months, and so on. ..

let date_obj = new Date();
let requestedTime = new Date(new Date().setDate(date_obj.getDate() - 1));

document.querySelector("#current_date").innerHTML = `current date: ${date_obj}`
document.querySelector("#last_24H_date").innerHTML = `last 24 hours: ${requestedTime}`

<div id="current_date"></div>
<div id="last_24H_date"></div>

Answer 12

db.video.find({"timestamp":{$lt: new Date(),$gte: new Date(new Date().setDate(new Date().getDate()-1))}})