moment js not updating in mongoose
This line of code will only be executed once, when the module is loaded:
var now = moment();So the same value of now will be used for all documents.
Instead, your schema definition should use a function which will be called each time a new document is created:
var UserSchema = new mongoose.Schema({ email: { type: String, default: ''}, name: { type: String, default: ''}, password: { type: String, default: ''}, timestamp: { type: String, default: () => moment().format("dddd, MMMM Do YYYY, h:mm:ss a") }});As a side note, consider using a Date data type instead of string for your timestamp as it's more flexible and efficient.