Soenneker.Extensions.TimeZoneInfos 4.0.18

Prefix Reserved

dotnet add package Soenneker.Extensions.TimeZoneInfos --version 4.0.18

NuGet\Install-Package Soenneker.Extensions.TimeZoneInfos -Version 4.0.18

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Soenneker.Extensions.TimeZoneInfos" Version="4.0.18" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Soenneker.Extensions.TimeZoneInfos" Version="4.0.18" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Extensions.TimeZoneInfos" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Soenneker.Extensions.TimeZoneInfos --version 4.0.18

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Soenneker.Extensions.TimeZoneInfos, 4.0.18"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Soenneker.Extensions.TimeZoneInfos@4.0.18

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Soenneker.Extensions.TimeZoneInfos&version=4.0.18
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Extensions.TimeZoneInfos&version=4.0.18
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Soenneker.Extensions.TimeZoneInfos

Map the four continental US time-zone IDs to stable, daylight-agnostic abbreviations.

Installation

dotnet add package Soenneker.Extensions.TimeZoneInfos

Usage

using Soenneker.Extensions.TimeZoneInfos;

TimeZoneInfo timeZone = TimeZoneInfo.FindSystemTimeZoneById("America/Chicago");
string abbreviation = timeZone.ToSimpleAbbreviation(); // "CT"

The mapping recognizes both Windows and IANA identifiers:

Windows ID	IANA ID	Result
`Eastern Standard Time`	`America/New_York`	`ET`
`Central Standard Time`	`America/Chicago`	`CT`
`Mountain Standard Time`	`America/Denver`	`MT`
`Pacific Standard Time`	`America/Los_Angeles`	`PT`

The comparison is case-insensitive. Other zones return "Unknown".

The result deliberately does not distinguish standard time from daylight time: New York returns ET, not EST or EDT. This method does not inspect an instant or calculate an offset; use TimeZoneInfo.GetUtcOffset() when the date-specific offset matters.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Soenneker.Extensions.TimeZoneInfos:

Package	Downloads
Soenneker.Extensions.DateTime A collection of helpful DateTime extension methods	1.5M
Soenneker.Extensions.DateTimeOffsets A collection of helpful DateTimeOffset extension methods	106.4K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
4.0.18	41	9/12/2026
4.0.17	13,226	8/30/2026
4.0.16	1,669	8/29/2026
4.0.15	17,419	7/28/2026
4.0.14	6,808	7/16/2026
4.0.13	12,168	6/18/2026
4.0.12	10,706	6/5/2026
4.0.11	12,474	4/22/2026
4.0.10	11,709	3/12/2026
4.0.9	474	3/12/2026
4.0.7	491	3/12/2026
4.0.6	8,232	3/10/2026
4.0.5	2,132	3/9/2026
4.0.4	130	3/9/2026
4.0.3	138	3/9/2026
4.0.2	9,521	3/4/2026
4.0.1	40,571	1/2/2026