I have a simple Meteor collection and I am trying to insert a document that has a momentjs property into it. So I do:
docId = Col.insert({m: moment()});
I strongly recommend storing dates as Date objects and using moment to format them after they are fetched. For example:
Date
Posts.insert({message: 'hello', createdAt: new Date});
Then later when you want to display the date:
var date = Posts.findOne().createdAt; moment(date).format('MMMM DD, YYYY');