Soenneker.Extensions.DateTimeOffsets.Hours 11.0.175

Prefix Reserved

dotnet add package Soenneker.Extensions.DateTimeOffsets.Hours --version 11.0.175

NuGet\Install-Package Soenneker.Extensions.DateTimeOffsets.Hours -Version 11.0.175

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.DateTimeOffsets.Hours" Version="11.0.175" />

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

<PackageVersion Include="Soenneker.Extensions.DateTimeOffsets.Hours" Version="11.0.175" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Extensions.DateTimeOffsets.Hours" />
                    

                            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.DateTimeOffsets.Hours --version 11.0.175

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

#r "nuget: Soenneker.Extensions.DateTimeOffsets.Hours, 11.0.175"

#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.DateTimeOffsets.Hours@11.0.175

#: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.DateTimeOffsets.Hours&version=11.0.175
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Extensions.DateTimeOffsets.Hours&version=11.0.175
                    

                            Install as a Cake Tool

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

Soenneker.Extensions.DateTimeOffsets.Hours

Provides fixed-offset hour boundaries, local-hour formatting, and hour-of-day conversion between UTC and named time zones.

Installation

dotnet add package Soenneker.Extensions.DateTimeOffsets.Hours

Hour boundaries

using Soenneker.Extensions.DateTimeOffsets.Hours;

DateTimeOffset value = new(2026, 8, 29, 16, 42, 30, TimeSpan.FromHours(-4));

DateTimeOffset start = value.ToStartOfHour();
DateTimeOffset end = value.ToEndOfHour();
DateTimeOffset previousStart = value.ToStartOfPreviousHour();
DateTimeOffset nextEnd = value.ToEndOfNextHour();

Method	Result for `16:42:30`
`ToStartOfHour()`	`16:00:00`
`ToEndOfHour()`	One tick before `17:00:00`
`ToStartOfPreviousHour()`	`15:00:00`
`ToEndOfPreviousHour()`	One tick before `16:00:00`
`ToStartOfNextHour()`	`17:00:00`
`ToEndOfNextHour()`	One tick before `18:00:00`

These methods preserve the stored offset and use fixed elapsed hours. They do not consult a named time zone or reinterpret repeated/skipped local clock hours.

Format an hour

string storedClock = value.ToHourFormat();

TimeZoneInfo eastern = TimeZoneInfo.FindSystemTimeZoneById("America/New_York");
string easternClock = value.ToTzHourFormat(eastern);
string easternHour = value.ToTzHourFormatWithTrim(eastern);

All three methods use h:mm tt with the current culture. ToHourFormat() formats the stored clock fields. ToTzHourFormat() first converts the instant to the target zone. ToTzHourFormatWithTrim() also resets local minutes and seconds to zero.

Convert a UTC hour to local time

DateTimeOffset reference = new(2026, 8, 29, 12, 0, 0, TimeSpan.Zero);

int localHour = reference.ToTzHoursFromUtc(utcHour: 18, eastern);
string localClock = reference.ToTzHourFormatFromUtc(utcHour: 18, eastern);

Both methods combine utcHour with the UTC date of reference, then convert that instant to the target zone. The integer method returns only 0–23; it discards the local date and minutes. The formatted method preserves fractional-hour offsets such as 5:30 AM.

Convert a local hour to UTC

int utcHour = reference.ToUtcHoursFromTz(tzHour: 9, eastern);

ToUtcHoursFromTz() chooses the local date in eastern that contains reference, interprets tzHour on that date, and returns only the UTC hour from 0 through 23.

If the local wall time is invalid, it advances minute-by-minute to the first valid minute. If it is ambiguous, it selects the earlier UTC instant. The returned integer does not include UTC date rollover or minutes; use a full-instant API when those details matter.

Hour arguments must be from 0 through 23.

Product	Compatible and additional computed target framework versions.
.NET	net11.0 is compatible.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net11.0
- Soenneker.Extensions.DateTimeOffsets (>= 11.0.207)

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Soenneker.Extensions.DateTimeOffsets.Hours:

Package	Downloads
Soenneker.Extensions.DateTimeOffsets.Suite A collection of all of the helpful DateTimeOffset extension methods	73.2K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
11.0.175	0	11/15/2026
11.0.173	176	11/11/2026
11.0.172	97	11/11/2026
11.0.171	95	11/11/2026
11.0.170	82	11/11/2026
11.0.169	120	11/10/2026
11.0.168	248	11/3/2026
11.0.167	123	11/3/2026
11.0.166	141	11/3/2026
11.0.165	158	10/27/2026
11.0.164	131	10/26/2026
11.0.163	106	10/26/2026
11.0.162	108	10/26/2026
11.0.161	110	10/26/2026
11.0.160	100	10/26/2026
4.0.159	647	10/15/2026
4.0.158	100	10/15/2026
4.0.157	106	10/14/2026
4.0.156	151	10/14/2026
4.0.155	110	10/14/2026

Update dependency Soenneker.Extensions.DateTimeOffsets to 11.0.207 (#326)