4
firestore.Timestamp.now();

I tried this way and it saves date as map.

nanoseconds: 388000000
seconds: 1570897877

nanoseconds and seconds type are number.

I want to save date as firestore timestamp using angular. I found duplicate questions without accepted answer.

Udeesha Induwara
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    Please edit the question to show the full code that adds data to Firestore (not just a call to a single function). We should be able to reproduce exactly what you're seeing. Also consider that using `FieldValue.serverTimestamp()` is typically what you use to let the server put the current time in a field. https://firebase.google.com/docs/reference/js/firebase.firestore.FieldValue.html#servertimestamp – Doug Stevenson Oct 12 '19 at 17:08

3 Answers3

4

If you want to add the current time as your Timestamp value in a Firestore document, you can you add it using FieldValue.serverTimestamp() as Doug mentioned, as in the following example:

import * as firebase from 'firebase';
[ . . . ]
db.collection('times').add({time: firebase.firestore.FieldValue.serverTimestamp()});

Should you want to get a specific time, you can create a new Date object and add it to your Firestore using the function toDateString() on it, as follows:

import * as firebase from 'firebase';
[ . . . ]
date = new Date('2018-11-16T09:48:51.137Z'); //sample date
this.db.collection('times').add({spec_time: this.date.toDateString()});
Pablo Almécija Rodríguez
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2
import * as firebase from 'firebase';

...


const data = {
    createdAt: firebase.default.firestore.FieldValue.serverTimestamp(),
};

This code worked for me. The important part was .default from the root firebase object.

Kanso Code
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1

You can use firebase.database.ServerValue.TIMESTAMP

Import firebase 

import * as firebase from 'firebase';

Initialize it

firebase.initializeApp(environment.firebase);

then you can use 

firebase.database.ServerValue.TIMESTAMP

To get the timestamp in milliseconds

Now, If you want to save the timestamp as Date then simply convert the timestamp by moment into your desired format and save it to the database

db.object("collection").set(moment(firebase.database.ServerValue.TIMESTAMP).toDate());