The .NET Framework has excellent support for locales all over the world. I wondered how good and whether that extended to Kenyan cultures. Turns out - it does!

To get a list of all the supported locales, use the following code, leveraging the System.Globalization namespace.

// Fetch all the cultures supported
var allCultures = CultureInfo.GetCultures(CultureTypes.AllCultures)
    .Select(x => new { x.Name, x.NativeName, x.DisplayName }).ToArray();

// Print count
Console.WriteLine($"There are {allCultures.Length} Locales");

// List all the found cultures
foreach (var culture in allCultures)
{
    Console.WriteLine(
        $"Name : {culture.Name};\tNative Name {culture.NativeName};\tDisplay Name: {culture.DisplayName}");
}

On my machine it returns the following:

All Locales

There are some 1,002 locales.

To filter those in Kenya, I can make use of the fact that the name contains the suffix -KE. We can use LINQ to filter the locales:

var kenyanCultures = allCultures.Where(x => x.Name.Contains("-KE")).ToArray();
// Print count
Console.WriteLine($"There are {kenyanCultures.Length} Locales");

// List all the found cultures
foreach (var culture in kenyanCultures)
{
    Console.WriteLine(
        $"Name : {culture.Name};\tNative Name {culture.NativeName};\tDisplay Name: {culture.DisplayName}");
}

This code returns the following:

KenyanLocales

The locales are:

  • Embu (Kenya)
  • English (Kenya)
  • Gusii (Kenya)
  • Kalenjin (Kenya)
  • Kamba (Kenya)
  • Kikuyu (Kenya)
  • Luo (Kenya)
  • Luyia (Kenya)
  • Masai (Kenya)
  • Meru (Kenya)
  • Oromo (Kenya)
  • Samburu (Kenya)
  • Somali (Kenya)
  • Swahili (Kenya)
  • Taita (Kenya)
  • Teso (Kenya)

These are the English Names.

The Native Names are as follows; where the Native Name refers to the names the cultures refer to themselves as.

  • Kĩembu (Kenya)
  • English (Kenya)
  • Ekegusii (Kenya)
  • Kalenjin (Emetab Kenya)
  • Kikamba (Kenya)
  • Gikuyu (Kenya)
  • Dholuo (Kenya)
  • Luluhia (Kenya)
  • Maa (Kenya)
  • Kĩmĩrũ (Kenya)
  • Oromoo (Keeniyaa)
  • Kisampur (Kenya)
  • Soomaali (Kenya)
  • Kiswahili (Kenya)
  • Kitaita (Kenya)
  • Kiteso (Kenia)

Given that we have the actual locale name, we can use that to interrogate each culture for information like the days of the week and the months of the year.

The following code will, for each locale, print the days of the week and the months of the year in that language.

foreach (var cultureInfo in kenyanCultures)
{
    // Load the culture by name
    var culture = new CultureInfo(cultureInfo.Name);
    // Fetch format info
    var format = culture.DateTimeFormat;
    // Get the days of the week
    var daysOfTheWeek = format.DayNames;
    // Get the months of the year
    var monthsOfTheYear = format.MonthGenitiveNames;
    // Print
    Console.WriteLine(cultureInfo.DisplayName);
    var days = string.Join(",", daysOfTheWeek);
    Console.WriteLine($"Days Of The Week: {days}");
    var months = string.Join(",", monthsOfTheYear);
    Console.WriteLine($"Months Of The Year: {months}");
    Console.WriteLine();
}

The results are as follows:

dotnet run

Taita (Kenya)
Days Of The Week: Ituku ja jumwa,Kuramuka jimweri,Kuramuka kawi,Kuramuka kadadu,Kuramuka kana,Kuramuka kasanu,Kifula nguwo
Months Of The Year: Mori ghwa imbiri,Mori ghwa kawi,Mori ghwa kadadu,Mori ghwa kana,Mori ghwa kasanu,Mori ghwa karandadu,Mori ghwa mfungade,Mori ghwa wunyanya,Mori ghwa ikenda,Mori ghwa ikumi,Mori ghwa ikumi na imweri,Mori ghwa ikumi na iwi,

Embu (Kenya)
Days Of The Week: Kiumia,Njumatatu,Njumaine,Njumatano,Aramithi,Njumaa,NJumamothii
Months Of The Year: Mweri wa mbere,Mweri wa kaĩri,Mweri wa kathatũ,Mweri wa kana,Mweri wa gatano,Mweri wa gatantatũ,Mweri wa mũgwanja,Mweri wa kanana,Mweri wa kenda,Mweri wa ikũmi,Mweri wa ikũmi na ũmwe,Mweri wa ikũmi na Kaĩrĩ,

English (Kenya)
Days Of The Week: Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
Months Of The Year: January,February,March,April,May,June,July,August,September,October,November,December,

Gusii (Kenya)
Days Of The Week: Chumapiri,Chumatato,Chumaine,Chumatano,Aramisi,Ichuma,Esabato
Months Of The Year: Chanuari,Feburari,Machi,Apiriri,Mei,Juni,Chulai,Agosti,Septemba,Okitoba,Nobemba,Disemba,

Kamba (Kenya)
Days Of The Week: Wa kyumwa,Wa kwambĩlĩlya,Wa kelĩ,Wa katatũ,Wa kana,Wa katano,Wa thanthatũ
Months Of The Year: Mwai wa mbee,Mwai wa kelĩ,Mwai wa katatũ,Mwai wa kana,Mwai wa katano,Mwai wa thanthatũ,Mwai wa muonza,Mwai wa nyaanya,Mwai wa kenda,Mwai wa ĩkumi,Mwai wa ĩkumi na ĩmwe,Mwai wa ĩkumi na ilĩ,

Kikuyu (Kenya)
Days Of The Week: Kiumia,Njumatatũ,Njumaine,Njumatana,Aramithi,Njumaa,Njumamothi
Months Of The Year: Njenuarĩ,Mwere wa kerĩ,Mwere wa gatatũ,Mwere wa kana,Mwere wa gatano,Mwere wa gatandatũ,Mwere wa mũgwanja,Mwere wa kanana,Mwere wa kenda,Mwere wa ikũmi,Mwere wa ikũmi na ũmwe,Ndithemba,

Kalenjin (Kenya)
Days Of The Week: Kotisap,Kotaai,Koaeng’,Kosomok,Koang’wan,Komuut,Kolo
Months Of The Year: Mulgul,Ng’atyaato,Kiptaamo,Iwootkuut,Mamuut,Paagi,Ng’eiyeet,Rooptui,Bureet,Epeeso,Kipsuunde ne taai,Kipsuunde nebo aeng’,

Luo (Kenya)
Days Of The Week: Jumapil,Wuok Tich,Tich Ariyo,Tich Adek,Tich Ang’wen,Tich Abich,Ngeso
Months Of The Year: Dwe mar Achiel,Dwe mar Ariyo,Dwe mar Adek,Dwe mar Ang’wen,Dwe mar Abich,Dwe mar Auchiel,Dwe mar Abiriyo,Dwe mar Aboro,Dwe mar Ochiko,Dwe mar Apar,Dwe mar gi achiel,Dwe mar Apar gi ariyo,

Luyia (Kenya)
Days Of The Week: Jumapiri,Jumatatu,Jumanne,Jumatano,Murwa wa Kanne,Murwa wa Katano,Jumamosi
Months Of The Year: Januari,Februari,Machi,Aprili,Mei,Juni,Julai,Agosti,Septemba,Oktoba,Novemba,Desemba,

Masai (Kenya)
Days Of The Week: Jumapílí,Jumatátu,Jumane,Jumatánɔ,Alaámisi,Jumáa,Jumamósi
Months Of The Year: Oladalʉ́,Arát,Ɔɛnɨ́ɔɨŋɔk,Olodoyíóríê inkókúâ,Oloilépūnyīē inkókúâ,Kújúɔrɔk,Mórusásin,Ɔlɔ́ɨ́bɔ́rárɛ,Kúshîn,Olgísan,Pʉshʉ́ka,Ntʉ́ŋʉ́s,

Meru (Kenya)
Days Of The Week: Kiumia,Muramuko,Wairi,Wethatu,Wena,Wetano,Jumamosi
Months Of The Year: Januarĩ,Feburuarĩ,Machi,Ĩpurũ,Mĩĩ,Njuni,Njuraĩ,Agasti,Septemba,Oktũba,Novemba,Dicemba,

Oromo (Kenya)
Days Of The Week: Dilbata,Wiixata,Qibxata,Roobii,Kamiisa,Jimaata,Sanbata
Months Of The Year: Amajjii,Guraandhala,Bitooteessa,Elba,Caamsa,Waxabajjii,Adooleessa,Hagayya,Fuulbana,Onkololeessa,Sadaasa,Muddee,

Samburu (Kenya)
Days Of The Week: Mderot ee are,Mderot ee kuni,Mderot ee ong’wan,Mderot ee inet,Mderot ee ile,Mderot ee sapa,Mderot ee kwe
Months Of The Year: Lapa le obo,Lapa le waare,Lapa le okuni,Lapa le ong’wan,Lapa le imet,Lapa le ile,Lapa le sapa,Lapa le isiet,Lapa le saal,Lapa le tomon,Lapa le tomon obo,Lapa le tomon waare,

Somali (Kenya)
Days Of The Week: Axad,Isniin,Talaado,Arbaco,Khamiis,Jimco,Sabti
Months Of The Year: Bisha Koobaad,Bisha Labaad,Bisha Saddexaad,Bisha Afraad,Bisha Shanaad,Bisha Lixaad,Bisha Todobaad,Bisha Sideedaad,Bisha Sagaalaad,Bisha Tobnaad,Bisha Kow iyo Tobnaad,Bisha Laba iyo Tobnaad,

Swahili (Kenya)
Days Of The Week: Jumapili,Jumatatu,Jumanne,Jumatano,Alhamisi,Ijumaa,Jumamosi
Months Of The Year: Januari,Februari,Machi,Aprili,Mei,Juni,Julai,Agosti,Septemba,Oktoba,Novemba,Desemba,

Teso (Kenya)
Days Of The Week: Nakaejuma,Nakaebarasa,Nakaare,Nakauni,Nakaung’on,Nakakany,Nakasabiti
Months Of The Year: Orara,Omuk,Okwamg’,Odung’el,Omaruk,Omodok’king’ol,Ojola,Opedel,Osokosokoma,Otibar,Olabor,Opoo,

To make this easier to read we can output this in markdown.

// Output days of the week in markdown
Console.WriteLine("| Language | Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |");
Console.WriteLine("| ------ | ------ | ------ | ------- | --------- | -------- | ------ | -------- |");
foreach (var cultureInfo in kenyanCultures)
{
    var culture = new CultureInfo(cultureInfo.Name);
    var format = culture.DateTimeFormat;
    var daysOfTheWeek = format.DayNames;
    Console.Write($"| {culture.DisplayName} ");
    for (var i = 0; i < 7; i++)
    {
        Console.Write($"| {daysOfTheWeek[i]}");
    }

    Console.Write(" |");
    Console.WriteLine();
}

This will output the following:

Language Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Embu (Kenya) Kiumia Njumatatu Njumaine Njumatano Aramithi Njumaa NJumamothii
English (Kenya) Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Gusii (Kenya) Chumapiri Chumatato Chumaine Chumatano Aramisi Ichuma Esabato
Kalenjin (Kenya) Kotisap Kotaai Koaeng’ Kosomok Koang’wan Komuut Kolo
Kamba (Kenya) Wa kyumwa Wa kwambĩlĩlya Wa kelĩ Wa katatũ Wa kana Wa katano Wa thanthatũ
Kikuyu (Kenya) Kiumia Njumatatũ Njumaine Njumatana Aramithi Njumaa Njumamothi
Luo (Kenya) Jumapil Wuok Tich Tich Ariyo Tich Adek Tich Ang’wen Tich Abich Ngeso
Luyia (Kenya) Jumapiri Jumatatu Jumanne Jumatano Murwa wa Kanne Murwa wa Katano Jumamosi
Masai (Kenya) Jumapílí Jumatátu Jumane Jumatánɔ Alaámisi Jumáa Jumamósi
Meru (Kenya) Kiumia Muramuko Wairi Wethatu Wena Wetano Jumamosi
Oromo (Kenya) Dilbata Wiixata Qibxata Roobii Kamiisa Jimaata Sanbata
Samburu (Kenya) Mderot ee are Mderot ee kuni Mderot ee ong’wan Mderot ee inet Mderot ee ile Mderot ee sapa Mderot ee kwe
Somali (Kenya) Axad Isniin Talaado Arbaco Khamiis Jimco Sabti
Swahili (Kenya) Jumapili Jumatatu Jumanne Jumatano Alhamisi Ijumaa Jumamosi
Taita (Kenya) Ituku ja jumwa Kuramuka jimweri Kuramuka kawi Kuramuka kadadu Kuramuka kana Kuramuka kasanu Kifula nguwo
Teso (Kenya) Nakaejuma Nakaebarasa Nakaare Nakauni Nakaung’on Nakakany Nakasabiti

Similar code will output the months of the year:

// Output months of the year in markdown
Console.WriteLine("| Language | January| February| March| April| May| June| July| August| September| October| November| December |");
Console.WriteLine("| ------ | ------ | ------ | ------- | --------- | -------- | ------ | -------- | -------- | -------- | -------- | -------- |-------- |");
foreach (var cultureInfo in kenyanCultures)
{
    var culture = new CultureInfo(cultureInfo.Name);
    var format = culture.DateTimeFormat;
    var monthsOfTheYear = format.MonthGenitiveNames;
    Console.Write($"| {culture.DisplayName} ");
    for (var i = 0; i < 12; i++)
    {
        Console.Write($"| {monthsOfTheYear[i]}");
    }
    Console.Write(" |");
    Console.WriteLine();
}

The output will be as follows:

Language January February March April May June July August September October November December
Embu (Kenya) Mweri wa mbere Mweri wa kaĩri Mweri wa kathatũ Mweri wa kana Mweri wa gatano Mweri wa gatantatũ Mweri wa mũgwanja Mweri wa kanana Mweri wa kenda Mweri wa ikũmi Mweri wa ikũmi na ũmwe Mweri wa ikũmi na Kaĩrĩ
English (Kenya) January February March April May June July August September October November December
Gusii (Kenya) Chanuari Feburari Machi Apiriri Mei Juni Chulai Agosti Septemba Okitoba Nobemba Disemba
Kalenjin (Kenya) Mulgul Ng’atyaato Kiptaamo Iwootkuut Mamuut Paagi Ng’eiyeet Rooptui Bureet Epeeso Kipsuunde ne taai Kipsuunde nebo aeng’
Kamba (Kenya) Mwai wa mbee Mwai wa kelĩ Mwai wa katatũ Mwai wa kana Mwai wa katano Mwai wa thanthatũ Mwai wa muonza Mwai wa nyaanya Mwai wa kenda Mwai wa ĩkumi Mwai wa ĩkumi na ĩmwe Mwai wa ĩkumi na ilĩ
Kikuyu (Kenya) Njenuarĩ Mwere wa kerĩ Mwere wa gatatũ Mwere wa kana Mwere wa gatano Mwere wa gatandatũ Mwere wa mũgwanja Mwere wa kanana Mwere wa kenda Mwere wa ikũmi Mwere wa ikũmi na ũmwe Ndithemba
Luo (Kenya) Dwe mar Achiel Dwe mar Ariyo Dwe mar Adek Dwe mar Ang’wen Dwe mar Abich Dwe mar Auchiel Dwe mar Abiriyo Dwe mar Aboro Dwe mar Ochiko Dwe mar Apar Dwe mar gi achiel Dwe mar Apar gi ariyo
Luyia (Kenya) Januari Februari Machi Aprili Mei Juni Julai Agosti Septemba Oktoba Novemba Desemba
Masai (Kenya) Oladalʉ́ Arát Ɔɛnɨ́ɔɨŋɔk Olodoyíóríê inkókúâ Oloilépūnyīē inkókúâ Kújúɔrɔk Mórusásin Ɔlɔ́ɨ́bɔ́rárɛ Kúshîn Olgísan Pʉshʉ́ka Ntʉ́ŋʉ́s
Meru (Kenya) Januarĩ Feburuarĩ Machi Ĩpurũ Mĩĩ Njuni Njuraĩ Agasti Septemba Oktũba Novemba Dicemba
Oromo (Kenya) Amajjii Guraandhala Bitooteessa Elba Caamsa Waxabajjii Adooleessa Hagayya Fuulbana Onkololeessa Sadaasa Muddee
Samburu (Kenya) Lapa le obo Lapa le waare Lapa le okuni Lapa le ong’wan Lapa le imet Lapa le ile Lapa le sapa Lapa le isiet Lapa le saal Lapa le tomon Lapa le tomon obo Lapa le tomon waare
Somali (Kenya) Bisha Koobaad Bisha Labaad Bisha Saddexaad Bisha Afraad Bisha Shanaad Bisha Lixaad Bisha Todobaad Bisha Sideedaad Bisha Sagaalaad Bisha Tobnaad Bisha Kow iyo Tobnaad Bisha Laba iyo Tobnaad
Swahili (Kenya) Januari Februari Machi Aprili Mei Juni Julai Agosti Septemba Oktoba Novemba Desemba
Taita (Kenya) Mori ghwa imbiri Mori ghwa kawi Mori ghwa kadadu Mori ghwa kana Mori ghwa kasanu Mori ghwa karandadu Mori ghwa mfungade Mori ghwa wunyanya Mori ghwa ikenda Mori ghwa ikumi Mori ghwa ikumi na imweri Mori ghwa ikumi na iwi
Teso (Kenya) Orara Omuk Okwamg’ Odung’el Omaruk Omodok’king’ol Ojola Opedel Osokosokoma Otibar Olabor Opoo

The code is in my GitHub

Happy hacking!