Soenneker.Extensions.DateTime.Day 11.0.2080

Prefix Reserved

dotnet add package Soenneker.Extensions.DateTime.Day --version 11.0.2080

NuGet\Install-Package Soenneker.Extensions.DateTime.Day -Version 11.0.2080

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.DateTime.Day" Version="11.0.2080" />

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

<PackageVersion Include="Soenneker.Extensions.DateTime.Day" Version="11.0.2080" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Extensions.DateTime.Day" />
                    

                            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.DateTime.Day --version 11.0.2080

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

#r "nuget: Soenneker.Extensions.DateTime.Day, 11.0.2080"

#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.DateTime.Day@11.0.2080

#: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.DateTime.Day&version=11.0.2080
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Extensions.DateTime.Day&version=11.0.2080
                    

                            Install as a Cake Tool

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

Soenneker.Extensions.DateTime.Day

Computes current, previous, and next day boundaries for DateTime, either from its existing clock fields or from a UTC instant in a specified time zone.

Installation

dotnet add package Soenneker.Extensions.DateTime.Day

Clock-field boundaries

using Soenneker.Extensions.DateTime.Day;

System.DateTime value = new(2026, 8, 29, 16, 42, 30, DateTimeKind.Utc);

System.DateTime start = value.ToStartOfDay();
System.DateTime end = value.ToEndOfDay();
System.DateTime previousStart = value.ToStartOfPreviousDay();
System.DateTime nextEnd = value.ToEndOfNextDay();

These methods do not perform a time-zone conversion. They operate on the date already present in the value and preserve its Kind.

Method	Result
`ToStartOfDay()`	`00:00:00` on the same date
`ToEndOfDay()`	One tick before the next date
`ToStartOfPreviousDay()`	`00:00:00` on the previous date
`ToEndOfPreviousDay()`	One tick before the current date
`ToStartOfNextDay()`	`00:00:00` on the next date
`ToEndOfNextDay()`	One tick before the date after next

Time-zone-aware boundaries

TimeZoneInfo eastern = TimeZoneInfo.FindSystemTimeZoneById("America/New_York");
System.DateTime utc = new(2026, 8, 29, 18, 0, 0, DateTimeKind.Utc);

System.DateTime localDayStartUtc = utc.ToStartOfTzDay(eastern);
System.DateTime localDayEndUtc = utc.ToEndOfTzDay(eastern);

The ...TzDay() methods use the supplied UTC clock fields to determine the corresponding local date, calculate that date's boundary in the target zone, and return the boundary as a UTC DateTime.

Available methods cover the start and end of the current, previous, and next local day:

ToStartOfTzDay() / ToEndOfTzDay()
ToStartOfPreviousTzDay() / ToEndOfPreviousTzDay()
ToStartOfNextTzDay() / ToEndOfNextTzDay()

If the input Kind is not Utc, its fields are treated as UTC rather than converted from the machine's local zone. Supply an actual UTC value to avoid ambiguity.

Day boundaries use local calendar math rather than fixed 24-hour durations. If local midnight falls in a daylight-saving gap, the start advances to the first valid local minute. If it is ambiguous, the earlier UTC instant is selected. An end boundary is one tick before the following valid day boundary, so 23-hour, 25-hour, and skipped local dates are handled consistently.

Day-of-week mapping

DayOfWeekType day = value.ToDayOfWeekType();

ToDayOfWeekType() maps System.DayOfWeek directly to the corresponding Soenneker.Enums.DayOfWeek.DayOfWeekType; it performs no time-zone conversion.

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.Enums.DayOfWeek (>= 11.0.806)
- Soenneker.Extensions.DateTime (>= 11.0.1859)

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Soenneker.Extensions.DateTime.Day:

Package	Downloads
Soenneker.Extensions.DateTime.DayOfWeek A collection of helpful DateTime day of week based extension methods	419.0K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
11.0.2080	50	11/14/2026
11.0.2079	58	11/14/2026
11.0.2078	196	11/11/2026
11.0.2077	99	11/11/2026
11.0.2076	89	11/11/2026
11.0.2075	95	11/11/2026
11.0.2073	138	11/11/2026
11.0.2072	87	11/11/2026
11.0.2071	98	11/11/2026
11.0.2070	103	11/11/2026
11.0.2069	91	11/10/2026
11.0.2068	78	11/10/2026
11.0.2067	649	11/3/2026
11.0.2066	115	11/3/2026
11.0.2065	126	11/2/2026
11.0.2064	224	10/27/2026
11.0.2063	97	10/27/2026
11.0.2062	154	10/26/2026
11.0.2061	120	10/26/2026
11.0.2059	119	10/26/2026

Update dependency Soenneker.Extensions.DateTime to 11.0.1859 (#2530)