Getting timestamp from mongodb id

Question

How do I get the timestamp from the MongoDB id?

Answer 1

In the server side make _id of MongoDB ObjectId

date = new Date( parseInt( _id.toString().substring(0,8), 16 ) * 1000 )

And on the client side use

var dateFromObjectId = function (objectId) {
return new Date(parseInt(objectId.substring(0, 8), 16) * 1000);
};