Add support to humanizing a TimeOnly as a readable clock notation

readme.md

@@ -39,6 +39,7 @@ Humanizer meets all your .NET needs for manipulating and displaying strings, enu
    - [Number to words](#number-to-words)
    - [Number to ordinal words](#number-to-ordinal-words)
    - [DateTime to ordinal words](#date-time-to-ordinal-words)
+   - [TimeOnly to Clock Notation](#time-only-to-clock-notation)
    - [Roman numerals](#roman-numerals)
    - [Metric numerals](#metric-numerals)
    - [ByteSize](#bytesize)
@@ -864,6 +865,20 @@ The possible values are `GrammaticalCase.Nominative`, `GrammaticalCase.Genitive`
 
 Obviously this only applies to some cultures. For others passing case in doesn't make any difference in the result.
 
+### <a id="time-only-to-clock-notation">TimeOnly to Clock Notation</a>
+Extends TimeOnly to allow humanizing it to a clock notation
+```C#
+// for English US locale
+new TimeOnly(3, 0).ToClockNotation() => "three o'clock"
+new TimeOnly(12, 0).ToClockNotation() => "noon"
+new TimeOnly(14, 30).ToClockNotation() => "half past two"
+
+// for Brazilian Portuguese locale
+new TimeOnly(3, 0).ToClockNotation() => "três em ponto"
+new TimeOnly(12, 0).ToClockNotation() => "meio-dia"
+new TimeOnly(14, 30).ToClockNotation() => "duas e meia"
+```
+
 ### <a id="roman-numerals">Roman numerals</a>
 Humanizer can change numbers to Roman numerals using the `ToRoman` extension. The numbers 1 to 10 can be expressed in Roman numerals as follows:
 

src/Humanizer.Tests.Shared/Humanizer.Tests.Shared.projitems

@@ -25,6 +25,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)DateHumanizeDefaultStrategyTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)FluentDate\InDateTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)FluentDate\OnDateTests.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Localisation\en\TimeToClockNotationTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\Bytes\ByteSizeExtensionsTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\Bytes\ToFullWordsTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\Bytes\ToStringTests.cs" />
@@ -36,6 +37,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\ResourcesTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\TimeOnlyHumanizeTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Localisation\is\TimeSpanHumanizeTests.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Localisation\pt-BR\TimeToClockNotationTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)TimeOnlyHumanizeTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)DateTimeHumanizePrecisionStrategyTests.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)DateOnlyHumanizeTests.cs" />

src/Humanizer.Tests.Shared/Localisation/en/TimeToClockNotationTests.cs

@@ -0,0 +1,62 @@
+#if NET6_0_OR_GREATER
+
+using System;
+using Xunit;
+using Humanizer.Localisation.TimeToClockNotation;
+
+namespace Humanizer.Tests.Localisation.en
+{
+    [UseCulture("en")]
+    public class TimeToClockNotationTests
+    {
+        [Theory]
+        [InlineData(00, 00, "midnight")]
+        [InlineData(04, 00, "four o'clock")]
+        [InlineData(05, 01, "five one")]
+        [InlineData(06, 05, "five past six")]
+        [InlineData(07, 10, "ten past seven")]
+        [InlineData(08, 15, "a quarter past eight")]
+        [InlineData(09, 20, "twenty past nine")]
+        [InlineData(10, 25, "twenty-five past ten")]
+        [InlineData(11, 30, "half past eleven")]
+        [InlineData(12, 00, "noon")]
+        [InlineData(15, 35, "three thirty-five")]
+        [InlineData(16, 40, "twenty to five")]
+        [InlineData(17, 45, "a quarter to six")]
+        [InlineData(18, 50, "ten to seven")]
+        [InlineData(19, 55, "five to eight")]
+        [InlineData(20, 59, "eight fifty-nine")]
+        public void ConvertToClockNotationTimeOnlyStringEnUs(int hours, int minutes, string expectedResult)
+        {
+            var actualResult = new TimeOnly(hours, minutes).ToClockNotation();
+            Assert.Equal(expectedResult, actualResult);
+        }
+
+        [Theory]
+        [InlineData(00, 00, "midnight")]
+        [InlineData(04, 00, "four o'clock")]
+        [InlineData(05, 01, "five o'clock")]
+        [InlineData(06, 05, "five past six")]
+        [InlineData(07, 10, "ten past seven")]
+        [InlineData(08, 15, "a quarter past eight")]
+        [InlineData(09, 20, "twenty past nine")]
+        [InlineData(10, 25, "twenty-five past ten")]
+        [InlineData(11, 30, "half past eleven")]
+        [InlineData(12, 00, "noon")]
+        [InlineData(13, 23, "twenty-five past one")]
+        [InlineData(14, 32, "half past two")]
+        [InlineData(15, 35, "three thirty-five")]
+        [InlineData(16, 40, "twenty to five")]
+        [InlineData(17, 45, "a quarter to six")]
+        [InlineData(18, 50, "ten to seven")]
+        [InlineData(19, 55, "five to eight")]
+        [InlineData(20, 59, "nine o'clock")]
+        public void ConvertToRoundedClockNotationTimeOnlyStringEnUs(int hours, int minutes, string expectedResult)
+        {
+            var actualResult = new TimeOnly(hours, minutes).ToClockNotation(ClockNotationRounding.NearestFiveMinutes);
+            Assert.Equal(expectedResult, actualResult);
+        }
+    }
+}
+
+#endif

src/Humanizer.Tests.Shared/Localisation/pt-BR/TimeToClockNotationTests.cs

@@ -0,0 +1,62 @@
+#if NET6_0_OR_GREATER
+
+using System;
+using Xunit;
+using Humanizer.Localisation.TimeToClockNotation;
+
+namespace Humanizer.Tests.Localisation.ptBR
+{
+    [UseCulture("pt-BR")]
+    public class TimeToClockNotationTests
+    {
+        [Theory]
+        [InlineData(00, 00, "meia-noite")]
+        [InlineData(04, 00, "quatro em ponto")]
+        [InlineData(05, 01, "cinco e um")]
+        [InlineData(06, 05, "seis e cinco")]
+        [InlineData(07, 10, "sete e dez")]
+        [InlineData(08, 15, "oito e quinze")]
+        [InlineData(09, 20, "nove e vinte")]
+        [InlineData(10, 25, "dez e vinte e cinco")]
+        [InlineData(11, 30, "onze e meia")]
+        [InlineData(12, 00, "meio-dia")]
+        [InlineData(15, 35, "três e trinta e cinco")]
+        [InlineData(16, 40, "vinte para as cinco")]
+        [InlineData(17, 45, "quinze para as seis")]
+        [InlineData(18, 50, "dez para as sete")]
+        [InlineData(19, 55, "cinco para as oito")]
+        [InlineData(20, 59, "oito e cinquenta e nove")]
+        public void ConvertToClockNotationTimeOnlyStringPtBr(int hours, int minutes, string expectedResult)
+        {
+            var actualResult = new TimeOnly(hours, minutes).ToClockNotation();
+            Assert.Equal(expectedResult, actualResult);
+        }
+
+        [Theory]
+        [InlineData(00, 00, "meia-noite")]
+        [InlineData(04, 00, "quatro em ponto")]
+        [InlineData(05, 01, "cinco em ponto")]
+        [InlineData(06, 05, "seis e cinco")]
+        [InlineData(07, 10, "sete e dez")]
+        [InlineData(08, 15, "oito e quinze")]
+        [InlineData(09, 20, "nove e vinte")]
+        [InlineData(10, 25, "dez e vinte e cinco")]
+        [InlineData(11, 30, "onze e meia")]
+        [InlineData(12, 00, "meio-dia")]
+        [InlineData(13, 23, "uma e vinte e cinco")]
+        [InlineData(14, 32, "duas e meia")]
+        [InlineData(15, 35, "três e trinta e cinco")]
+        [InlineData(16, 40, "vinte para as cinco")]
+        [InlineData(17, 45, "quinze para as seis")]
+        [InlineData(18, 50, "dez para as sete")]
+        [InlineData(19, 55, "cinco para as oito")]
+        [InlineData(20, 59, "nove em ponto")]
+        public void ConvertToRoundedClockNotationTimeOnlyStringPtBr(int hours, int minutes, string expectedResult)
+        {
+            var actualResult = new TimeOnly(hours, minutes).ToClockNotation(ClockNotationRounding.NearestFiveMinutes);
+            Assert.Equal(expectedResult, actualResult);
+        }
+    }
+}
+
+#endif

src/Humanizer.Tests/ApiApprover/PublicApiApprovalTest.approve_public_api.approved.txt

@@ -1581,6 +1581,10 @@ namespace Humanizer
         public static string Humanize(this string input) { }
         public static string Humanize(this string input, Humanizer.LetterCasing casing) { }
     }
+    public class static TimeOnlyToClockNotationExtensions
+    {
+        public static string ToClockNotation(this System.TimeOnly input, Humanizer.Localisation.TimeToClockNotation.ClockNotationRounding roundToNearestFive = 0) { }
+    }
     public class static TimeSpanHumanizeExtensions
     {
         public static string Humanize(this System.TimeSpan timeSpan, int precision = 1, System.Globalization.CultureInfo culture = null, Humanizer.Localisation.TimeUnit maxUnit = 5, Humanizer.Localisation.TimeUnit minUnit = 0, string collectionSeparator = ", ", bool toWords = False) { }
@@ -1736,6 +1740,7 @@ namespace Humanizer.Configuration
         public static Humanizer.Configuration.LocaliserRegistry<Humanizer.Localisation.NumberToWords.INumberToWordsConverter> NumberToWordsConverters { get; }
         public static Humanizer.Configuration.LocaliserRegistry<Humanizer.Localisation.Ordinalizers.IOrdinalizer> Ordinalizers { get; }
         public static Humanizer.DateTimeHumanizeStrategy.ITimeOnlyHumanizeStrategy TimeOnlyHumanizeStrategy { get; set; }
+        public static Humanizer.Configuration.LocaliserRegistry<Humanizer.Localisation.TimeToClockNotation.ITimeOnlyToClockNotationConverter> TimeOnlyToClockNotationConverters { get; }
     }
     public class LocaliserRegistry<TLocaliser>
         where TLocaliser :  class
@@ -1945,4 +1950,16 @@ namespace Humanizer.Localisation.Ordinalizers
         string Convert(int number, string numberString);
         string Convert(int number, string numberString, Humanizer.GrammaticalGender gender);
     }
+}
+namespace Humanizer.Localisation.TimeToClockNotation
+{
+    public enum ClockNotationRounding
+    {
+        None = 0,
+        NearestFiveMinutes = 1,
+    }
+    public interface ITimeOnlyToClockNotationConverter
+    {
+        string Convert(System.TimeOnly time, Humanizer.Localisation.TimeToClockNotation.ClockNotationRounding roundToNearestFive);
+    }
 }

src/Humanizer/Configuration/Configurator.cs

@@ -7,6 +7,9 @@
 using Humanizer.Localisation.Formatters;
 using Humanizer.Localisation.NumberToWords;
 using Humanizer.Localisation.Ordinalizers;
+#if NET6_0_OR_GREATER
+using Humanizer.Localisation.TimeToClockNotation;
+#endif
 
 namespace Humanizer.Configuration
 {
@@ -70,6 +73,15 @@ public static LocaliserRegistry<IDateOnlyToOrdinalWordConverter> DateOnlyToOrdin
         {
             get { return _dateOnlyToOrdinalWordConverters; }
         }
+
+        private static readonly LocaliserRegistry<ITimeOnlyToClockNotationConverter> _timeOnlyToClockNotationConverters = new TimeOnlyToClockNotationConvertersRegistry();
+        /// <summary>
+        /// A registry of time to clock notation converters used to localise ToClockNotation methods
+        /// </summary>
+        public static LocaliserRegistry<ITimeOnlyToClockNotationConverter> TimeOnlyToClockNotationConverters
+        {
+            get { return _timeOnlyToClockNotationConverters; }
+        }
 #endif
 
         internal static ICollectionFormatter CollectionFormatter
@@ -131,6 +143,14 @@ internal static IDateOnlyToOrdinalWordConverter DateOnlyToOrdinalWordsConverter
                 return DateOnlyToOrdinalWordsConverters.ResolveForUiCulture();
             }
         }
+
+        internal static ITimeOnlyToClockNotationConverter TimeOnlyToClockNotationConverter
+        {
+            get
+            {
+                return TimeOnlyToClockNotationConverters.ResolveForUiCulture();
+            }
+        }
 #endif
 
         private static IDateTimeHumanizeStrategy _dateTimeHumanizeStrategy = new DefaultDateTimeHumanizeStrategy();

src/Humanizer/Configuration/TimeOnlyToClockNotationConvertersRegistry.cs

@@ -0,0 +1,16 @@
+#if NET6_0_OR_GREATER
+
+using Humanizer.Localisation.TimeToClockNotation;
+
+namespace Humanizer.Configuration
+{
+    internal class TimeOnlyToClockNotationConvertersRegistry : LocaliserRegistry<ITimeOnlyToClockNotationConverter>
+    {
+        public TimeOnlyToClockNotationConvertersRegistry() : base(new DefaultTimeOnlyToClockNotationConverter())
+        {
+            Register("pt-BR", new BrazilianPortugueseTimeOnlyToClockNotationConverter());
+        }
+    }
+}
+
+#endif

src/Humanizer/Localisation/TimeToClockNotation/BrazilianPortugueseTimeOnlyToClockNotationConverter.cs

@@ -0,0 +1,39 @@
+#if NET6_0_OR_GREATER
+
+using System;
+
+namespace Humanizer.Localisation.TimeToClockNotation
+{
+    internal class BrazilianPortugueseTimeOnlyToClockNotationConverter : ITimeOnlyToClockNotationConverter
+    {
+        public virtual string Convert(TimeOnly time, ClockNotationRounding roundToNearestFive)
+        {
+            switch (time)
+            {
+                case { Hour: 0, Minute: 0 }:
+                    return "meia-noite";
+                case { Hour: 12, Minute: 0 }:
+                    return "meio-dia";
+            }
+
+            var normalizedHour = time.Hour % 12;
+            var normalizedMinutes = (int)(roundToNearestFive == ClockNotationRounding.NearestFiveMinutes
+                ? 5 * Math.Round(time.Minute / 5.0)
+                : time.Minute);
+
+            return normalizedMinutes switch
+            {
+                00 => $"{normalizedHour.ToWords(GrammaticalGender.Feminine)} em ponto",
+                30 => $"{normalizedHour.ToWords(GrammaticalGender.Feminine)} e meia",
+                40 => $"vinte para as {(normalizedHour + 1).ToWords(GrammaticalGender.Feminine)}",
+                45 => $"quinze para as {(normalizedHour + 1).ToWords(GrammaticalGender.Feminine)}",
+                50 => $"dez para as {(normalizedHour + 1).ToWords(GrammaticalGender.Feminine)}",
+                55 => $"cinco para as {(normalizedHour + 1).ToWords(GrammaticalGender.Feminine)}",
+                60 => $"{(normalizedHour + 1).ToWords(GrammaticalGender.Feminine)} em ponto",
+                _ => $"{normalizedHour.ToWords(GrammaticalGender.Feminine)} e {normalizedMinutes.ToWords()}"
+            };
+        }
+    }
+}
+
+#endif

src/Humanizer/Localisation/TimeToClockNotation/ClockNotationRounding.cs

@@ -0,0 +1,8 @@
+namespace Humanizer.Localisation.TimeToClockNotation
+{
+    public enum ClockNotationRounding
+    {
+        None,
+        NearestFiveMinutes
+    }
+}

src/Humanizer/Localisation/TimeToClockNotation/DefaultTimeOnlyToClockNotationConverter.cs

@@ -0,0 +1,44 @@
+#if NET6_0_OR_GREATER
+
+using System;
+
+namespace Humanizer.Localisation.TimeToClockNotation
+{
+    internal class DefaultTimeOnlyToClockNotationConverter : ITimeOnlyToClockNotationConverter
+    {
+        public virtual string Convert(TimeOnly time, ClockNotationRounding roundToNearestFive)
+        {
+            switch (time)
+            {
+                case { Hour: 0, Minute: 0 }:
+                    return "midnight";
+                case { Hour: 12, Minute: 0 }:
+                    return "noon";
+            }
+
+            var normalizedHour = time.Hour % 12;
+            var normalizedMinutes = (int)(roundToNearestFive == ClockNotationRounding.NearestFiveMinutes
+                ? 5 * Math.Round(time.Minute / 5.0)
+                : time.Minute);
+
+            return normalizedMinutes switch
+            {
+                00 => $"{normalizedHour.ToWords()} o'clock",
+                05 => $"five past {normalizedHour.ToWords()}",
+                10 => $"ten past {normalizedHour.ToWords()}",
+                15 => $"a quarter past {normalizedHour.ToWords()}",
+                20 => $"twenty past {normalizedHour.ToWords()}",
+                25 => $"twenty-five past {normalizedHour.ToWords()}",
+                30 => $"half past {normalizedHour.ToWords()}",
+                40 => $"twenty to {(normalizedHour + 1).ToWords()}",
+                45 => $"a quarter to {(normalizedHour + 1).ToWords()}",
+                50 => $"ten to {(normalizedHour + 1).ToWords()}",
+                55 => $"five to {(normalizedHour + 1).ToWords()}",
+                60 => $"{(normalizedHour + 1).ToWords()} o'clock",
+                _ => $"{normalizedHour.ToWords()} {normalizedMinutes.ToWords()}"
+            };
+        }
+    }
+}
+
+#endif

src/Humanizer/Localisation/TimeToClockNotation/ITimeOnlyToClockNotationConverter.cs

@@ -0,0 +1,22 @@
+#if NET6_0_OR_GREATER
+
+using System;
+
+namespace Humanizer.Localisation.TimeToClockNotation
+{
+    /// <summary>
+    /// The interface used to localise the ToClockNotation method.
+    /// </summary>
+    public interface ITimeOnlyToClockNotationConverter
+    {
+        /// <summary>
+        /// Converts the time to Clock Notation 
+        /// </summary>
+        /// <param name="time"></param>
+        /// <param name="roundToNearestFive"></param>
+        /// <returns></returns>
+        string Convert(TimeOnly time, ClockNotationRounding roundToNearestFive);
+    }
+}
+
+#endif