diff --git a/dotnet-datetime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime.csproj b/dotnet-datetime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime.csproj
index 470348a459..b15fde6806 100644
--- a/dotnet-datetime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime.csproj
+++ b/dotnet-datetime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime/HandlingDatesWithNodaTime.csproj
@@ -2,13 +2,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NodaTime" Version="3.1.9" />
+    <PackageReference Include="NodaTime" Version="3.3.5" />
   </ItemGroup>
 
 </Project>
diff --git a/dotnet-datetime/HandlingDatesWithNodaTime/Tests/NodaTimeUnitTest.cs b/dotnet-datetime/HandlingDatesWithNodaTime/Tests/NodaTimeUnitTest.cs
index 45df5a38ae..4ca8de48ae 100644
--- a/dotnet-datetime/HandlingDatesWithNodaTime/Tests/NodaTimeUnitTest.cs
+++ b/dotnet-datetime/HandlingDatesWithNodaTime/Tests/NodaTimeUnitTest.cs
@@ -27,14 +27,15 @@ public void WhenUtcDateIsSpecified_ThenReturnInstantFromUtcDate()
     }
 
     [Fact]
-    public void WhenFromUnixTimeTicksMethodIsCalled_ThenReturnInstantFromUnixTicks()
+    public void WhenFromUnixTimeSecondsMethodIsCalled_ThenReturnInstantFromUnixSeconds()
     {
         var epochTime = 1693153840;
 
-        var instant = Instant.FromUnixTimeTicks(epochTime);
-        var unixTimeTicks = instant.ToUnixTimeTicks();
+        var instant = Instant.FromUnixTimeSeconds(epochTime);
+        var unixTimeSeconds = instant.ToUnixTimeSeconds();
 
-        Assert.Equal(epochTime, unixTimeTicks);
+        Assert.Equal(epochTime, unixTimeSeconds);
+        Assert.Equal(Instant.FromUtc(2023, 8, 27, 16, 30, 40), instant);
     }
 
     [Fact]
@@ -109,14 +110,14 @@ public void WhenDifferentTimesArePassed_ThenCompareThemAndReturnResult()
     }
 
     [Fact]
-    public void WhenLocalDateTimezoneAndDateTimezoneAreCombined_ThenReturnZoneDateTime()
+    public void WhenLocalDateTimezoneAndDateTimezoneAreCombined_ThenReturnZonedDateTime()
     {
         var localDateTime = new LocalDateTime(2023, 8, 31, 15, 30);
         var timezone = DateTimeZoneProviders.Tzdb["Africa/Cairo"];
 
-        var zoneDateTime = localDateTime.InZoneLeniently(timezone);
+        var zonedDateTime = localDateTime.InZoneLeniently(timezone);
 
-        Assert.Equal("Africa/Cairo", zoneDateTime.Zone.Id);
+        Assert.Equal("Africa/Cairo", zonedDateTime.Zone.Id);
     }
 
     [Fact]
@@ -127,7 +128,7 @@ public void WhenDurationsAreAdded_ThenReturnSumOfDuration()
 
         var sumOfDurations = durationInDays + durationInHours;
 
-        Assert.Equal( 1.125, sumOfDurations.TotalDays);
+        Assert.Equal(1.125, sumOfDurations.TotalDays);
     }
 
     [Fact]
@@ -224,5 +225,49 @@ public void WhenTimeZoneIsSpecified_ThenReturnDateTimeZone()
         Assert.NotNull(newYorkTimeZone);
         Assert.Equal(timeZoneId, newYorkTimeZone.Id);
     }
-}
 
+    [Fact]
+    public void WhenDurationIsAddedToZonedDateTime_ThenElapsedTimeCrossesTheDstGap()
+    {
+        var newYork = DateTimeZoneProviders.Tzdb["America/New_York"];
+        var start = new LocalDateTime(2026, 3, 8, 1, 30).InZoneStrictly(newYork);
+
+        var later = start + Duration.FromHours(1);
+
+        Assert.Equal(new LocalDateTime(2026, 3, 8, 3, 30), later.LocalDateTime);
+        Assert.Equal(Duration.FromHours(1), later.ToInstant() - start.ToInstant());
+    }
+
+    [Fact]
+    public void WhenPeriodIsAddedToLocalDateTime_ThenOnlyTheWallClockMoves()
+    {
+        var newYork = DateTimeZoneProviders.Tzdb["America/New_York"];
+        var start = new LocalDateTime(2026, 3, 8, 1, 30);
+
+        var later = start + Period.FromHours(1);
+
+        Assert.Equal(new LocalDateTime(2026, 3, 8, 2, 30), later);
+        Assert.Throws<SkippedTimeException>(() => later.InZoneStrictly(newYork));
+    }
+
+    [Fact]
+    public void WhenDurationIsAddedAsNanoseconds_ThenLocalDateTimeMovesByThatAmount()
+    {
+        var start = new LocalDateTime(2026, 3, 8, 1, 30);
+        var duration = Duration.FromMinutes(90);
+
+        var later = start.PlusNanoseconds(duration.ToInt64Nanoseconds());
+
+        Assert.Equal(new LocalDateTime(2026, 3, 8, 3, 0), later);
+    }
+
+    [Fact]
+    public void WhenTimeProviderIsConvertedToClock_ThenReturnCurrentInstant()
+    {
+        IClock clock = TimeProvider.System.ToClock();
+
+        var instant = clock.GetCurrentInstant();
+
+        Assert.True(instant != default);
+    }
+}
diff --git a/dotnet-datetime/HandlingDatesWithNodaTime/Tests/Tests.csproj b/dotnet-datetime/HandlingDatesWithNodaTime/Tests/Tests.csproj
index c9dace6a1c..3660c69ce6 100644
--- a/dotnet-datetime/HandlingDatesWithNodaTime/Tests/Tests.csproj
+++ b/dotnet-datetime/HandlingDatesWithNodaTime/Tests/Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 
@@ -10,13 +10,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="3.2.0">
+    <PackageReference Include="coverlet.collector" Version="10.1.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>