The Great Humanizer
The following is one possible solution to this challenge.
This one involves project configuration, so downloading the full solution might be worthwhile.
Program.cs
using Humanizer;
using System;
Console.WriteLine($"When is the feast? {DateTime.UtcNow.AddHours(30).Humanize()}");
Console.WriteLine($"When is the feast? {DateTime.UtcNow.AddSeconds(30).Humanize()}");
Console.WriteLine($"When is the feast? {DateTime.UtcNow.AddYears(2).Humanize()}");
Console.WriteLine($"When is the feast? {DateTime.UtcNow.AddMonths(1).Humanize()}");
TheGreatHumanizer.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Humanizer.Core" Version="2.8.26" />
</ItemGroup>
</Project>