Firestore timestamp android A Timestamp represents a point in time independent of any time zone or calendar. The received object date field is a Timestamp object regardless if we sent a Date object. You can only compare timestamps with timestamps. seconds val utcDT = LocalDateTime. I tried to use DateTimeFormatter but it Tried to convert firestore timestamp to string and I got this! I tried String date = FieldValue. Nov 30, 2019 · The best way on all platforms is to use the server timestamp token provided by the SDK (and not using the client's clock, which could be wrong). Firestore does not compare integers with timestamps. One of the essential data types in Firestore is the `Timestamp`, which represents a point in time. whereLessThan("START_DATE", date2) You will have to provide the values for date1 and date2 that meet your needs. collection("POLL") . For example: You have a firestore timestamp Annotation used to mark a timestamp field to be populated with a server timestamp. How to query by referencing timestamps? This is what my firestore document looks like >>> D7OLt. To get the current date and time from Firebase in an Android app, you can use the Firebase Realtime Database or Firestore to store a timestamp and retrieve it when needed. Also, as others users have pointed out, Firestore Timestamp is UNIX time and the object has 2 properties: seconds and nanoseconds. A simple way is to convert firestore timestamp to epoch timestamp is by using toMillis() method on firestore timestamp. co. But Yesterday an issue occurred on getting timestamp value from document snapshot. coll Oct 10, 2019 · timestamp as a document in Firestore, Android Asked 5 years, 4 months ago Modified 5 years, 4 months ago Viewed 120 times Apr 7, 2020 · Firestore Timestamp format in android vs firebase function Asked 4 years, 11 months ago Modified 4 years, 11 months ago Viewed 94 times Jul 12, 2020 · However, the timestamp field in your database is a Firestore timestamp type field. Every comment looks like this (time is of type Timestam 4 days ago · However, because a TTL field is a timestamp, indexing the field can affect performance at higher traffic rates. Oct 30, 2021 · How can i convert below date to firebase timestamp format ?? Date 22-May-2005 android firebase date google-cloud-firestore edited Oct 30, 2021 at 17:44 Frank van Puffelen Jan 25, 2020 · This is related to this question: How can I get Timestamp from Firestore server without bothering for the case when device clock is out of sync with Firestore I have understood FieldValue. google. Jul 31, 2021 · Note: I know how to add Timestamp to Firestore and I have done that using "timestamp" to FieldValue. Hotspots are high read, write, and delete rates to a narrow document range. Jan 30, 2018 · I am using Firestore to store the details of users. How can I convert it to Date in Java? D/TEST: Timestamp field: Timestamp (seconds=162109 Learn how to fetch server timestamps in Firestore using Java or Kotlin on Android devices. By the time I'm editing this answer, in this class there is no method that returns a timestamp. getInstance(). The Firestore SDK will convert automatically. See full list on rowy. About Firestore Date/Timestamp Firestore use Timestamp class to represent DateTime on the client (Android), and it does not store TimeZone information. I am having trouble when it's part of an object of my data class. get ("createdAt"); Long t Dec 12, 2017 · I'm using firestore in my android project, everything working fine. Represented as seconds and fractions of seconds at nanosecond resolution in UTC Epoch time. A guide to adding data to Cloud Firestore, including how to set, add, and update documents. The problem is that you are multiplying the timestamp by 1000. You can pass a Date or Timestamp object from the SDK for that comparison. Oct 19, 2025 · Firestore, a NoSQL database by Google, offers a powerful and scalable solution for storing and syncing data in web and mobile applications. getData (). js, Java, Python, Unity, C++ and Go SDKs, in addition to REST and RPC APIs. Jun 1, 2019 · I am passing a Class as Extras and the class has TimeStamp as a member and getting the following error, how to serialize TimeStamp? Error: java. serverTimestamp() when adding a Hashmap. I need to get the users created today. By default, Cloud Firestore creates a single-field index for all fields. Apr 10, 2024 · Storing dates in Cloud Firestore is extremely easy. serverTimestamp(). Summary In my Firebase Firestore, I have a collection of comments. Update a Firestore document Timestamp Explore further For detailed documentation that includes this code sample, see the following: Add and update data Add data to Cloud Firestore Code sample I personally prefer to use Timestamp compared to Date to avoid timezone confusion. db . Mar 30, 2020 · Note that timestamp-based queries work just fine if you provide either a Date or a Timestamp object. png (704×641 I have a query that orders by my timestamp value in my server, the currently timestamp is set by my pojo as a date data class Timestamp(@ServerTimestamp val timestamp:Date? = null) This timestamp is Aug 12, 2020 · 特にDateからTimestampへの変換を忘れがちなので、備忘録として。 https://firebase. I want to format my Timestamp date to "dd MMM yyyy, HH:mm" in my recyclerview. A well tested feature rich Firebase implementation for React Native, supporting both iOS & Android platforms for 10+ Firebase modules (including Cloud Firestore) 🔥. If you want to use Date, simply say new Date(x) where x is the value in milliseconds that you were trying to add before. But your timestamp already holds a value in milliseconds not in seconds (this false assumption is most likely the reason you have the multiplication). io Adding a Timestamp in Firestore is a straightforward process using the Firestore SDK for Android. Before, Firestore was saving Timestamp as a Date, however as described here in the docs the will be replaced soon by a Timestamp object. now(). Why not use Timestamp. uk/udemy/react-and May 19, 2022 · Is there a way to add time to a Timestamp formatted time without having to convert it multiple times? val seconds: Long = Timestamp. According to the documentation: Annotation used to mark a Date field to be populated with a server timestamp. NotSerializableException: com. A Timestamp represents a point in time independent of any time zone or calendar. now ()? If you want to store using Firestore Timestamp, create it using their class. Example : FAILED_PRECONDITION: The query requires an index. ofEpochSecond( Reference for Timestamp Jul 26, 2019 · I have the problem related to parsing Firestore Timestamp in Android app. While you can query based on a specific timestamp, you'll have to specify the specific nanosecond that you want to get back. Test variants to make data-driven decisions about changes, features, and campaigns. My problem is I don't know how to query on firestore referencing timestamps. The documentation is here. io. Nov 14, 2025 · A guide to ordering and limiting data in Cloud Firestore queries. Jan 17, 2020 · In Android, you can call DocumentSnapshot. I am also using java's LocalDateTime to store locally what date and time I picked fro I store a Date in Firestore. Learn how to get the created date of a Firestore document with this easy-to-follow guide. However, s Nov 21, 2021 · I am using a date picker and time picker dialog to choose what date and time to save into a Firestore document. I have a field datetime which is a server timestamp, which denotes the time of user creation. 4 days ago · Cloud Firestore is a cloud-hosted, NoSQL database that your Apple, Android, and web apps can access directly via native SDKs. how i convert this Timestamp (seconds=1556006384, nanoseconds=994000000) to Date in kotlin. Dec 14, 2018 · When using firestore console message saying you need to write timestamp setting. Jun 9, 2022 · Since you're storing timestamps in Firestore, the values are exact moments in time with nanosecond granularity. Although the values of the timestamp field might remain close together, the concatenated shard and index value give Cloud Firestore enough space between index entries to split the entries among multiple tablets. Apr 24, 2019 · i'm working with firestore, and getting stuck when i get the timestamp from firestore. See the Timestamp docs here. Please h Tags: android firebase google-cloud-firestore I'm using firestore in my android project, everything working fine. Instantly change your app's behavior and appearance, without publishing an update. Here's a general guide using Firestore: May 8, 2018 · Just create index and it will start working with timestamp too. This is happening because those components simply do not exist at all since May 22, 2019 · How to convert timestamped retrieved from firebase firestore database and compare it with the current date and time. g: Current time is May 21, 2020 · Firestore timestamp is just a simple object with two properties — seconds and nanoseconds, which apparently has some advantages over “classic” date format. However, if you want to convert a year and month to a Firestore Timestamp object, the day, hour, minutes, seconds and nanoseconds components will always be 0. When working with TypeScript, leveraging Firestore's `Timestamp` effectively can enhance the accuracy and reliability of time-related operations in your Nov 14, 2025 · By sharding a timestamp field, you make it possible for Cloud Firestore to efficiently split workloads across multiple tablets. com/iamshaunjp/Getting-Started-with-Firebase-9🐱👤 My Premium Udemy courses:https://thenetninja. On iOS I wrote in appdelegete and no message anymore but I'm from iOS land so I'm not sure where I should put those on. toString(); and instead of time stamp I got this as shown in Screenshot1 Aug 28, 2021 · I am using Firebase pagging and therefore i need current timestamp for queries database in firebase ? can anyone knows how to get current timestamp from system? FirebaseFirestore. Gain real-time insight into your app's performance and fix issues. When I get it from firestore, I receive below constructor. Just make sure timestamp is a number type and not a string. Apr 17, 2020 · If you want to query a timestamp field in a collection, you can use either a java Date or Firestore Timestamp object with a range filter. If you want to select a specific date on the same data, that translates to a range of timestamps, and thus to either startAt / endBefore filters or >= / < on Oct 29, 2017 · 9 For everyone recently using Firebase Firestore, there's a difference depending on your settings of your Firebase implementation (depending on the firebase version). If you want to use Timestamp, you would have to do more work to get that x converted into a combination of Aug 12, 2020 · currently, I'm trying to query some Timestamp data from my application. Here is an example of a class that can both be written into and read from Firestore whose foo property will be populated with the server timestamp in Firestore if its value is null: Jul 28, 2020 · I have have a Datepicker in my android app written in kotlin, i get year month and day, but i need to save this in Timestamp in firestore database, to query the results by date for example, i have no problem in converting Timestamp to Date or to day month and year. Kotlin Note When applying this annotation to a property of a Kotlin class, the @get use-site target should always be used. The document has a "date" field (Timestamp) inside it, I would like to get data that fulfill the given date range ( 1 day ago · A guide to getting started with Cloud Firestore, including how to create a database, add data, and read data. getMetadata () method or QuerySnapshot. Aug 28, 2021 · So I want is to get the value of Firestore timestamp and Local device currentTime, and display the different: Timestamp timestamp = (Timestamp) document. To create index best way is to search FAILED_PRECONDITION: in Android Studio logcat and you will see a link just follow that link and create index. com/docs/reference/android/com/google/firebase/Timestamp If you want to store a field as a timestamp in Firestore, you'll have to send a JavaScript Date object or a Firestore Timestamp object as the value of the field. With this information, you can track the history of your documents and troubleshoot any issues that may arise. The problem I encounter is, that the server-timestamp is showing a wrong time (e. When you query for the document, the field will always show up in the document snapshot as a Timestamp type object. There is no need to use the @set use-site target as this If you want to write a timestamp field, and you can't use a server timestamp, you will need to either provide a regular Java Date object, or a Firebase Timestamp object. Note that timestamp-based queries work just fine if you provide either a Date or a Timestamp object. Either of these types of values will convert to a timestamp field in the document. getMetadata (), which both return an object of type SnapshotMetadata. whereGreaterThan("START_DATE", date1) . Jul 26, 2016 · I wanted to get firebase current timestamp, not able to find a way to get that. I get an HashMap<String, Object> from firestore and i want to recreate my object from it. Nov 8, 2021 · After I retrieve the date of data field from Firestore's Timestamp. Cloud Firestore is also available in native Node. You can create it here: Feel free to ask any query. I want to save child as shown in the image. Try converting the number into a Date: whereGreaterThan("timestamp", new Date(oneDay)) Jun 24, 2016 · Your timestamp 1466769937914 equals to 2016-06-24 12:05:37 UTC. Is there any First of all, Firestore timestamps are generated on the server and as Doug Stevenson mentioned in his comment, it can store time units as small as nanoseconds. If a POJO being written contains null for a @ServerTimestamp-annotated field, it will be replaced with a server-generated timestamp. Indexing a timestamp field can create hotspots which is against best practices. Convert the date to a Timestamp type, and add it to your JSON. Jan 27, 2018 · I am trying to add a timestamp field in an Android client with Firebase Firestore. 🐱👤 Course files:https://github. Before implementing the Date the working code was : HashMap<String, Reference for TimestampA Timestamp represents a point in time independent of any time zone or calendar, represented as seconds and fractions of seconds at nanosecond resolution in UTC Epoch time. May 7, 2025 · I have a field createAt (timestamp) in a document. Nov 25, 2021 · I am trying to use firebase-server-timestamp to show the user when he/she send their order to us. I already can get the value of the date range picker and store it from a variable. As we retrieve the property from Firestore: the Client/Admin SDK receive it as a Timestamp JSON and instantiate it as a Timestamp object. Streamline delivery of pre-release Android and iOS apps to trusted testers. I am using a date range picker where I will let my user set the date range of the data that they will query from firestore. firebase. And for that I've to get timestamp and get the date accordingly. This allows you to track when documents are created or updated, making it easier to manage your data. This guide covers code examples and common issues. There is convenient Timestamp method to work with Java Date: Date toDate() and Timestamp(Date date). qji kachjca pqaye tidvb cmfjpc daicyklx zkee ipsgcw wdncqa uluvr owlnafk sohz wtiz bgmixr ivgmh