public sealed class SystemTimestamps : IMessage<SystemTimestamps>, IEquatable<SystemTimestamps>, IDeepCloneable<SystemTimestamps>, IBufferMessage, IMessage
Reference documentation and code samples for the Data Catalog v1 API class SystemTimestamps.
Timestamps associated with this resource in a particular system.
Timestamp of the last modification of the resource or its metadata within
a given system.
Note: Depending on the source system, not every modification updates this
timestamp.
For example, BigQuery timestamps every metadata modification but not data
or permission changes.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eSystemTimestamps\u003c/code\u003e class in the Data Catalog v1 API is 2.14.0, and older versions are available, ranging back to 1.2.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSystemTimestamps\u003c/code\u003e class provides timestamps related to a resource within a system, including its creation, update, and expiration times.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSystemTimestamps\u003c/code\u003e implements several interfaces, including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, allowing for various operations like deep cloning and buffer management.\u003c/p\u003e\n"],["\u003cp\u003eThe class includes properties for \u003ccode\u003eCreateTime\u003c/code\u003e, \u003ccode\u003eExpireTime\u003c/code\u003e, and \u003ccode\u003eUpdateTime\u003c/code\u003e, all of which are of type \u003ccode\u003eTimestamp\u003c/code\u003e and are associated with when a resource was created, updated, or expires.\u003c/p\u003e\n"],["\u003cp\u003eThe class is part of the \u003ccode\u003eGoogle.Cloud.DataCatalog.V1\u003c/code\u003e namespace and is located in the \u003ccode\u003eGoogle.Cloud.DataCatalog.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"]]],[],null,["# Data Catalog v1 API - Class SystemTimestamps (2.16.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.16.0 (latest)](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/latest/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.15.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.14.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.14.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.13.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.13.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.12.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.12.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.11.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.11.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.10.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.9.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.8.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.7.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.6.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.5.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.4.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.3.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.2.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.1.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.1.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [2.0.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/2.0.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.8.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.8.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.7.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.7.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.6.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.5.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.4.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.3.0/Google.Cloud.DataCatalog.V1.SystemTimestamps)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/1.2.0/Google.Cloud.DataCatalog.V1.SystemTimestamps) \n\n public sealed class SystemTimestamps : IMessage\u003cSystemTimestamps\u003e, IEquatable\u003cSystemTimestamps\u003e, IDeepCloneable\u003cSystemTimestamps\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Data Catalog v1 API class SystemTimestamps.\n\nTimestamps associated with this resource in a particular system. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e SystemTimestamps \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[SystemTimestamps](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/latest/Google.Cloud.DataCatalog.V1.SystemTimestamps), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[SystemTimestamps](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/latest/Google.Cloud.DataCatalog.V1.SystemTimestamps), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[SystemTimestamps](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/latest/Google.Cloud.DataCatalog.V1.SystemTimestamps), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.DataCatalog.V1](/dotnet/docs/reference/Google.Cloud.DataCatalog.V1/latest/Google.Cloud.DataCatalog.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.DataCatalog.V1.dll\n\nConstructors\n------------\n\n### SystemTimestamps()\n\n public SystemTimestamps()\n\n### SystemTimestamps(SystemTimestamps)\n\n public SystemTimestamps(SystemTimestamps other)\n\nProperties\n----------\n\n### CreateTime\n\n public Timestamp CreateTime { get; set; }\n\nCreation timestamp of the resource within the given system.\n\n### ExpireTime\n\n public Timestamp ExpireTime { get; set; }\n\nOutput only. Expiration timestamp of the resource within the given system.\n\nCurrently only applicable to BigQuery resources.\n\n### UpdateTime\n\n public Timestamp UpdateTime { get; set; }\n\nTimestamp of the last modification of the resource or its metadata within\na given system.\n\nNote: Depending on the source system, not every modification updates this\ntimestamp.\nFor example, BigQuery timestamps every metadata modification but not data\nor permission changes."]]
