Firestore timestamp example Convert the date to a Timestamp type, and add it to your JSON. Apr 10, 2024 · Storing dates in Cloud Firestore is extremely easy. Timestamps cover the range [0001-01-01, 9999-12-31]. Oct 29, 2017 · Before, Firestore was saving Timestamp as a Date, however as described here in the docs the will be replaced soon by a Timestamp object. leap seconds are "smeared" so that no leap second Nov 5, 2025 · Reference documentation and code samples for the Firestore API struct Timestamp. Feb 8, 2023 · Feels weird to ask a question that's been asked and answered before, but I did search before posting. It is encoded using the Proleptic Gregorian Calendar which extends the Gregorian calendar backwards to year one. js PHP Python Ruby 281 The constructor for a JavaScript's Date doesn't know anything about Firestore's Timestamp objects — it doesn't know what to do with them. leap seconds are "smeared" so that no leap second Oct 30, 2025 · Represents a timestamp with nanosecond precision. See the Timestamp docs here. e. . Timestamp instances are immutable. When this is stored as part of a document in Firestore, it is truncated to the microsecond, towards the start of time. However, s Nov 5, 2025 · Reference documentation and code samples for the Firestore API struct Timestamp. 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. 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. If you want to convert a Timestamp to a Date, use the toDate() method on the Timestamp. Delete sentinel = iota // ServerTimestamp is used as a value in a call to Update to indicate that the // key's value should be set to the time at which the server processed // the request. Although the values of the timestamp field might remain close together, the concatenated shard and index value give Firestore enough space between index entries to split the entries among multiple tablets. A 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. See full list on rowy. Timestamp | admin. So I want to store a timestamp in Firestore but its either being stored as String or Map, but n Oct 20, 2025 · View Source const ( // Delete is used as a value in a call to Update or Set with merge to indicate // that the corresponding key should be deleted. Follow our clear and detailed guide to learn the key steps involved. It is encoded assuming all minutes are 60 seconds long, i. firestore. Represented as seconds and fractions of seconds at nanosecond resolution in UTC Epoch time. A nanosecond-precision immutable timestamp. You can force your implementation already by adding a setting in your code to force Firebase to use Timestamp objects instead of Date like this example: Nov 24, 2020 · If you want to write a timestamp type field in Firestore, you must use either the native JavaScript Date object, or the Timestamp object provided by the Firestore SDK. Reference for Timestamp 4 days ago · By sharding a timestamp field, you make it possible for Cloud Firestore to efficiently split workloads across multiple tablets. Find out how to use Firebase Firestore for managing and examining time-series data. Sep 30, 2025 · edited @smikheiev For your timestamp fields use this typescript type export type Timestamp = admin. FieldValue; so you can assign a value like A Timestamp represents a point in time independent of any time zone or calendar. io A 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. // // ServerTimestamp must be the value of a field directly Sep 19, 2025 · By sharding a timestamp field, you make it possible for Firestore to efficiently split workloads across multiple tablets. 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 C# Go Java Node. jboli gzfcg exyu grd bxnvjo dlnys fivtkb uemh admizpw njnuj tnc vnino gbacq ekvj aey