diff --git a/client/src/__test__/utils/PortugueseUtils.test.ts b/client/src/__test__/utils/PortugueseUtils.test.ts
new file mode 100644
index 0000000..2c239a2
--- /dev/null
+++ b/client/src/__test__/utils/PortugueseUtils.test.ts
@@ -0,0 +1,37 @@
+import { describe, expect, it } from 'vitest';
+import { translateTimeAgoPtBr, translateTimeLeftPtBr } from '../../utils/PortugueseUtils';
+// import USER_LANG from '../../types/UserLangs';
+
+describe('Portuguese Utils unit tests', () => {
+  // const target = USER_LANG.PORTUGUESE;
+
+  it('should translate all time ago messages', () => {
+    expect(translateTimeAgoPtBr('years ago', 2)).toBe('2 anos atrás');
+    expect(translateTimeAgoPtBr('year ago', 1)).toBe('1 ano atrás');
+    expect(translateTimeAgoPtBr('months ago', 2)).toBe('2 meses atrás');
+    expect(translateTimeAgoPtBr('month ago', 1)).toBe('1 mês atrás');
+    expect(translateTimeAgoPtBr('days ago', 2)).toBe('2 dias atrás');
+    expect(translateTimeAgoPtBr('day ago', 1)).toBe('1 dia atrás');
+    expect(translateTimeAgoPtBr('hours ago', 2)).toBe('2 horas atrás');
+    expect(translateTimeAgoPtBr('hour ago', 1)).toBe('1 hora atrás');
+    expect(translateTimeAgoPtBr('minutes ago', 2)).toBe('2 minutos atrás');
+    expect(translateTimeAgoPtBr('minute ago', 1)).toBe('1 minuto atrás');
+    expect(translateTimeAgoPtBr('seconds ago', 2)).toBe('2 segundos atrás');
+    expect(translateTimeAgoPtBr('second ago', 1)).toBe('1 segundo atrás');
+    expect(translateTimeAgoPtBr('lala', 1)).toBe('Momentos atrás');
+    expect(translateTimeAgoPtBr('null', 1)).toBe('Momentos atrás');
+    expect(translateTimeAgoPtBr('null', 0)).toBe('Momentos atrás');
+  });
+
+  it('should translate all time left messages', () => {
+    expect(translateTimeLeftPtBr('years left', 2)).toBe('2 anos restantes');
+    expect(translateTimeLeftPtBr('year left', 1)).toBe('1 ano restante');
+    expect(translateTimeLeftPtBr('months left', 2)).toBe('2 meses restantes');
+    expect(translateTimeLeftPtBr('month left', 1)).toBe('1 mês restante');
+    expect(translateTimeLeftPtBr('days left', 2)).toBe('2 dias restantes');
+    expect(translateTimeLeftPtBr('day left', 1)).toBe('1 dia restante');
+    expect(translateTimeLeftPtBr('lala', 1)).toBe('lala');
+    expect(translateTimeLeftPtBr('null', 1)).toBe('null');
+    expect(translateTimeLeftPtBr('null', 0)).toBe('null');
+  });
+});
\ No newline at end of file
diff --git a/client/src/components/LoginForm/index.tsx b/client/src/components/LoginForm/index.tsx
index 4719a8a..d4bdb2f 100644
--- a/client/src/components/LoginForm/index.tsx
+++ b/client/src/components/LoginForm/index.tsx
@@ -16,7 +16,7 @@ import {
 import { Link, useNavigate } from 'react-router-dom';
 import { useTranslation } from 'react-i18next';
 import AuthContext from '../../context/AuthContext';
-import { translateMessage } from '../../utils/TranslatorUtils';
+import { translateServerResponse } from '../../utils/TranslatorUtils';
 import { handleDefaultLang } from '../../lang-service/LangHandler';
 
 /**
@@ -53,7 +53,7 @@ function LoginForm({ prefix }: { prefix: string }): JSX.Element {
     const form = event.currentTarget;
     if (form.checkValidity() === false) {
       setFormInvalid(true);
-      setErrorMessage(translateMessage('Please fill in your username and password!', i18n.language));
+      setErrorMessage(translateServerResponse('Please fill in your username and password!', i18n.language));
       return;
     }
 
@@ -70,10 +70,10 @@ function LoginForm({ prefix }: { prefix: string }): JSX.Element {
     catch (e) {
       setFormInvalid(true);
       if (typeof e === 'string') {
-        setErrorMessage(translateMessage(e, i18n.language));
+        setErrorMessage(translateServerResponse(e, i18n.language));
       }
       else if (e instanceof Error) {
-        setErrorMessage(translateMessage(e.message, i18n.language));
+        setErrorMessage(translateServerResponse(e.message, i18n.language));
       }
     }
   };
diff --git a/client/src/utils/PortugueseUtils.ts b/client/src/utils/PortugueseUtils.ts
index e3b9eb7..245b675 100644
--- a/client/src/utils/PortugueseUtils.ts
+++ b/client/src/utils/PortugueseUtils.ts
@@ -3,7 +3,7 @@
  *
  * @param {string} textValue The text message to be translated.
  * @param {number} numberValue The number value to be used in the message.
- * @returns The message translated.
+ * @returns The translated message.
  */
 function translateTimeAgoPtBr(textValue: string, numberValue: number): string {
   if (textValue.includes('year')) {
@@ -16,7 +16,7 @@ function translateTimeAgoPtBr(textValue: string, numberValue: number): string {
       ? `${numberValue} meses atrás`
       : `${numberValue} mês atrás`;
   }
-  else if (textValue.includes('days')) {
+  else if (textValue.includes('day')) {
     return textValue.includes('s ')
       ? `${numberValue} dias atrás`
       : `${numberValue} dia atrás`;
@@ -26,12 +26,12 @@ function translateTimeAgoPtBr(textValue: string, numberValue: number): string {
       ? `${numberValue} horas atrás`
       : `${numberValue} hora atrás`;
   }
-  else if (textValue.includes('minutes')) {
+  else if (textValue.includes('minute')) {
     return textValue.includes('s ')
       ? `${numberValue} minutos atrás`
       : `${numberValue} minuto atrás`;
   }
-  else if (textValue.includes('seconds')) {
+  else if (textValue.includes('second')) {
     return textValue.includes('s ')
       ? `${numberValue} segundos atrás`
       : `${numberValue} segundo atrás`;
@@ -45,7 +45,7 @@ function translateTimeAgoPtBr(textValue: string, numberValue: number): string {
  *
  * @param {string} textValue The text message to be translated.
  * @param {number} numberValue The number value to be used in the message.
- * @returns The message translated.
+ * @returns The translated message.
  */
 function translateTimeLeftPtBr(textValue: string, numberValue: number): string {
   if (textValue.includes('year')) {
@@ -66,4 +66,58 @@ function translateTimeLeftPtBr(textValue: string, numberValue: number): string {
   return textValue;
 }
 
-export { translateTimeAgoPtBr, translateTimeLeftPtBr };
+/**
+ * Translates a server response message from English to brazilian Portuguese.
+ *
+ * @param {string} message The text message to be translated.
+ * @returns The translated message.
+ */
+function translateServerResponsePtBr(message: string): string {
+  switch (message) {
+    case 'Bad password: Password must have at least at least 8 characters, 1 uppercase, 1 special character': {
+      return 'Senha fraca: Senha deve possuir pelo menos 8 letras, 1 maiúscula, 1 caracter especial';
+    }
+    case 'Bad password: Password must have at least 1 uppercase, 1 special character': {
+      return 'Senha fraca: Senha deve possuir pelo menos 1 maiúscula, 1 caracter especial';
+    }
+    case 'Bad password: Password must have at least 1 special character': {
+      return 'Senha fraca: Senha deve possuir pelo menos 1 caracter especial';
+    }
+    case 'Email already exists!': {
+      return 'E-mail já cadastrado!';
+    }
+    case 'Forbidden! Access denied!': {
+      return 'Proibido! Acesso negado';
+    }
+    case 'Internal Server Error!': {
+      return 'Erro Interno do Servidor!';
+    }
+    case 'Max login attempt limit reached. Please wait 30 minutes': {
+      return 'Limite máximo de tentativas atingido. Por favor aguarde 30 minutos';
+    }
+    case 'Please fill in all the fields': {
+      return 'Por ravor, preencha todos os campos';
+    }
+    case 'Please fill in your username and password!': {
+      return 'Por favor, informe seu e-mail e senha!';
+    }
+    case 'Please type at least 3 characters': {
+      return 'Por favor, digite pelo menos 3 letras';
+    }
+    case 'The maximum text length is 2000': {
+      return 'O tamanho máximo do texto é 2000';
+    }
+    case 'Unknown error': {
+      return 'Erro desconhecido';
+    }
+    case 'Wrong or missing information!': {
+      return 'Informação errada ou incompleta!';
+    }
+    case 'Wrong user or password': {
+      return 'E-mail ou senha inválidos!';
+    }
+    default: return message;
+  }
+}
+
+export { translateTimeAgoPtBr, translateTimeLeftPtBr, translateServerResponsePtBr };
diff --git a/client/src/utils/RussianUtils.ts b/client/src/utils/RussianUtils.ts
index 0e40fa8..f0c86f6 100644
--- a/client/src/utils/RussianUtils.ts
+++ b/client/src/utils/RussianUtils.ts
@@ -1,3 +1,10 @@
+/**
+ * Translates a time ago message from English to Russian.
+ *
+ * @param {string} textValue The text message to be translated.
+ * @param {number} numberValue The number value to be used in the message.
+ * @returns The translated message.
+ */
 function translateTimeAgoRu(textValue: string, numberValue: number): string {
   if (textValue.includes('year')) {
     return textValue.includes('s ')
@@ -33,4 +40,84 @@ function translateTimeAgoRu(textValue: string, numberValue: number): string {
   return 'Несколько минут назад';
 }
 
-export { translateTimeAgoRu };
+/**
+ * Translates a time left message from English to Russian.
+ *
+ * @param {string} textValue The text message to be translated.
+ * @param {number} numberValue The number value to be used in the message.
+ * @returns The translated message.
+ */
+function translateTimeLeftRu(textValue: string, numberValue: number): string {
+  if (textValue.includes('year')) {
+    return textValue.includes('s ')
+      ? `осталось ${numberValue} лет`
+      : `Остался ${numberValue} год`;
+  }
+  else if (textValue.includes('month')) {
+    return textValue.includes('s ')
+      ? `осталось ${numberValue} месяцев`
+      : `Остался ${numberValue} месяц`;
+  }
+  else if (textValue.includes('day')) {
+    return textValue.includes('s ')
+      ? `осталось ${numberValue} дней`
+      : `Остался ${numberValue} день`;
+  }
+  return textValue;
+}
+
+/**
+ * Translates a server response message from English to Russian.
+ *
+ * @param {string} message The text message to be translated.
+ * @returns The translated message.
+ */
+function translateServerResponseRu(message: string): string {
+  switch (message) {
+    case 'Bad password: Password must have at least at least 8 characters, 1 uppercase, 1 special character': {
+      return 'Неправильный пароль: Пароль должен содержать не менее 8 символов, 1 заглавную букву, 1 специальный символ.';
+    }
+    case 'Bad password: Password must have at least 1 uppercase, 1 special character': {
+      return 'Неправильный пароль: Пароль должен содержать как минимум 1 заглавную букву и 1 специальный символ.';
+    }
+    case 'Bad password: Password must have at least 1 special character': {
+      return 'Неправильный пароль: Пароль должен содержать хотя бы 1 специальный символ.';
+    }
+    case 'Email already exists!': {
+      return 'Электронная почта уже существует!';
+    }
+    case 'Forbidden! Access denied!': {
+      return 'Запрещено! Доступ запрещен!';
+    }
+    case 'Internal Server Error!': {
+      return 'Внутренняя ошибка сервера!';
+    }
+    case 'Max login attempt limit reached. Please wait 30 minutes': {
+      return 'Достигнут максимальный лимит попыток входа. Пожалуйста, подождите 30 минут';
+    }
+    case 'Please fill in all the fields': {
+      return 'Пожалуйста, заполните все поля';
+    }
+    case 'Please fill in your username and password!': {
+      return 'Пожалуйста, введите свое имя пользователя и пароль!';
+    }
+    case 'Please type at least 3 characters': {
+      return 'Пожалуйста, введите не менее 3 символов';
+    }
+    case 'The maximum text length is 2000': {
+      return 'Максимальная длина текста — 2000.';
+    }
+    case 'Unknown error': {
+      return 'Неизвестная ошибка';
+    }
+    case 'Wrong or missing information!': {
+      return 'Неверная или отсутствующая информация!';
+    }
+    case 'Wrong user or password': {
+      return 'Неправильный пользователь или пароль';
+    }
+    default: return message;
+  }
+}
+
+export { translateTimeAgoRu, translateTimeLeftRu, translateServerResponseRu };
diff --git a/client/src/utils/SpanishUtils.ts b/client/src/utils/SpanishUtils.ts
index c03b2db..8409090 100644
--- a/client/src/utils/SpanishUtils.ts
+++ b/client/src/utils/SpanishUtils.ts
@@ -3,7 +3,7 @@
  *
  * @param {string} textValue The text message to be translated.
  * @param {number} numberValue The number value to be used in the message.
- * @returns The message translated.
+ * @returns The translated message.
  */
 function translateTimeAgoEs(textValue: string, numberValue: number): string {
   if (textValue.includes('year')) {
@@ -45,7 +45,7 @@ function translateTimeAgoEs(textValue: string, numberValue: number): string {
  *
  * @param {string} textValue The text message to be translated.
  * @param {number} numberValue The number value to be used in the message.
- * @returns The message translated.
+ * @returns The translated message.
  */
 function translateTimeLeftEs(textValue: string, numberValue: number): string {
   if (textValue.includes('year')) {
@@ -66,4 +66,58 @@ function translateTimeLeftEs(textValue: string, numberValue: number): string {
   return textValue;
 }
 
-export { translateTimeAgoEs, translateTimeLeftEs };
+/**
+ * Translates a server response message from English to Spanish.
+ *
+ * @param {string} message The text message to be translated.
+ * @returns The translated message.
+ */
+function translateServerResponseEs(message: string): string {
+  switch (message) {
+    case 'Bad password: Password must have at least at least 8 characters, 1 uppercase, 1 special character': {
+      return 'Contraseña inválida: La contraseña debe tener al menos 8 caracteres, 1 mayúscula y 1 carácter especial';
+    }
+    case 'Bad password: Password must have at least 1 uppercase, 1 special character': {
+      return 'Contraseña inválida: La contraseña debe tener al menos 1 mayúscula y 1 carácter especial';
+    }
+    case 'Bad password: Password must have at least 1 special character': {
+      return 'Contraseña inválida: La contraseña debe tener al menos 1 carácter especial';
+    }
+    case 'Email already exists!': {
+      return '¡El correo ya está registrado!';
+    }
+    case 'Forbidden! Access denied!': {
+      return '¡Prohibido! Acceso denegado';
+    }
+    case 'Internal Server Error!': {
+      return '¡Error interno del servidor!';
+    }
+    case 'Max login attempt limit reached. Please wait 30 minutes': {
+      return 'Has alcanzado el límite máximo de intentos de inicio de sesión. Por favor, espera 30 minutos';
+    }
+    case 'Please fill in all the fields': {
+      return 'Por favor, completa todos los campos';
+    }
+    case 'Please fill in your username and password!': {
+      return '¡Por favor, ingresa tu nombre de usuario y contraseña!';
+    }
+    case 'Please type at least 3 characters': {
+      return '¡Por favor, escriba al menos 3 caracteres';
+    }
+    case 'The maximum text length is 2000': {
+      return 'La longitud máxima del texto es 2000';
+    }
+    case 'Unknown error': {
+      return 'Error desconocido';
+    }
+    case 'Wrong or missing information!': {
+      return '¡Información incorrecta o incompleta!';
+    }
+    case 'Wrong user or password': {
+      return '¡Usuario o contraseña incorrectos!';
+    }
+    default: return message;
+  }
+}
+
+export { translateTimeAgoEs, translateTimeLeftEs, translateServerResponseEs };
diff --git a/client/src/utils/TranslatorUtils.ts b/client/src/utils/TranslatorUtils.ts
index ad1bd84..17506ac 100644
--- a/client/src/utils/TranslatorUtils.ts
+++ b/client/src/utils/TranslatorUtils.ts
@@ -1,25 +1,8 @@
 import { TaskResponse } from '../types/TaskResponse';
 import USER_LANG from '../types/UserLangs';
-import { translateTimeAgoPtBr, translateTimeLeftPtBr } from './PortugueseUtils';
-import { translateTimeAgoRu } from './RussianUtils';
-import { translateTimeAgoEs, translateTimeLeftEs } from './SpanishUtils';
-
-/**
- * Translates all responses from tasks server API.
- *
- * @param {TaskResponse[]} tasks The tasks to be translated.
- * @param {string} target The target language.
- * @returns {TaskResponse[]} Array of tasks translated into the target language.
- */
-function translateTaskResponse(tasks: TaskResponse[], target: string): TaskResponse[] {
-  tasks.forEach((task: TaskResponse) => {
-    task.lastUpdate = translateMessage(task.lastUpdate, target);
-    if (task.dueDateFmt) {
-      task.dueDateFmt = translateMessage(task.dueDateFmt, target);
-    }
-  });
-  return tasks;
-}
+import { translateServerResponsePtBr, translateTimeAgoPtBr, translateTimeLeftPtBr } from './PortugueseUtils';
+import { translateServerResponseRu, translateTimeAgoRu, translateTimeLeftRu } from './RussianUtils';
+import { translateServerResponseEs, translateTimeAgoEs, translateTimeLeftEs } from './SpanishUtils';
 
 /**
  * Translates a given message to a given language
@@ -28,16 +11,16 @@ function translateTaskResponse(tasks: TaskResponse[], target: string): TaskRespo
  * @param {string} target The target language. One of USER_LANG
  * @returns {string} The translated message.
  */
-function translateMessage(message: string, target: string): string {
+function translateTimeMessage(message: string, target: string): string {
   if (target === USER_LANG.ENGLISH) {
     return message;
   }
 
-  if (message.includes(' ago')) {
-    const firstSpace = message.indexOf(' ');
-    const numberValue = parseInt(message.substring(0, firstSpace));
-    const textValue = message.substring(firstSpace).trim();
+  const firstSpace = message.indexOf(' ');
+  const numberValue = parseInt(message.substring(0, firstSpace));
+  const textValue = message.substring(firstSpace).trim();
 
+  if (message.includes(' ago')) {
     if (target === USER_LANG.PORTUGUESE) {
       return translateTimeAgoPtBr(textValue, numberValue);
     }
@@ -49,229 +32,52 @@ function translateMessage(message: string, target: string): string {
   }
 
   if (message.includes(' left')) {
-    const firstSpace = message.indexOf(' ');
-    const numberValue = parseInt(message.substring(0, firstSpace));
-    const textValue = message.substring(firstSpace).trim();
-
     if (target === USER_LANG.PORTUGUESE) {
       return translateTimeLeftPtBr(textValue, numberValue);
     }
     if (target === USER_LANG.SPANISH) {
       return translateTimeLeftEs(textValue, numberValue);
     }
-    switch (textValue) {
-      case 'years left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `осталось ${numberValue} лет`;
-        }
-        break;
-      }
-      case 'year left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `Остался ${numberValue} год`;
-        }
-        break;
-      }
-      case 'months left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `осталось ${numberValue} месяцев`;
-        }
-        break;
-      }
-      case 'month left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `Остался ${numberValue} месяц`;
-        }
-        break;
-      }
-      case 'days left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `осталось ${numberValue} дней`;
-        }
-        break;
-      }
-      case 'day left': {
-        if (lang === USER_LANG.RUSSIAN) {
-          return `Остался ${numberValue} день`;
-        }
-        break;
-      }
-    }
+
+    return translateTimeLeftRu(textValue, numberValue);
   }
 
-  switch (message) {
-    case 'Bad password: Password must have at least at least 8 characters, 1 uppercase, 1 special character': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Senha fraca: Senha deve possuir pelo menos 8 letras, 1 maiúscula, 1 caracter especial';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Contraseña inválida: La contraseña debe tener al menos 8 caracteres, 1 mayúscula y 1 carácter especial';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неправильный пароль: Пароль должен содержать не менее 8 символов, 1 заглавную букву, 1 специальный символ.';
-      }
-      break;
-    }
-    case 'Bad password: Password must have at least 1 uppercase, 1 special character': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Senha fraca: Senha deve possuir pelo menos 1 maiúscula, 1 caracter especial';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Contraseña inválida: La contraseña debe tener al menos 1 mayúscula y 1 carácter especial';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неправильный пароль: Пароль должен содержать как минимум 1 заглавную букву и 1 специальный символ.';
-      }
-      break;
-    }
-    case 'Bad password: Password must have at least 1 special character': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Senha fraca: Senha deve possuir pelo menos 1 caracter especial';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Contraseña inválida: La contraseña debe tener al menos 1 carácter especial';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неправильный пароль: Пароль должен содержать хотя бы 1 специальный символ.';
-      }
-      break;
-    }
-    case 'Email already exists!': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'E-mail já cadastrado!';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡El correo ya está registrado!';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Электронная почта уже существует!';
-      }
-      break;
-    }
-    case 'Forbidden! Access denied!': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Proibido! Acesso negado';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Prohibido! Acceso denegado';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Запрещено! Доступ запрещен!';
-      }
-      break;
-    }
-    case 'Internal Server Error!': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Erro Interno do Servidor!';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Error interno del servidor!';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Внутренняя ошибка сервера!';
-      }
-      break;
-    }
-    case 'Max login attempt limit reached. Please wait 30 minutes': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Limite máximo de tentativas atingido. Por favor aguarde 30 minutos';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Has alcanzado el límite máximo de intentos de inicio de sesión. Por favor, espera 30 minutos';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Достигнут максимальный лимит попыток входа. Пожалуйста, подождите 30 минут';
-      }
-      break;
-    }
-    case 'Please fill in all the fields': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Por ravor, preencha todos os campos';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Por favor, completa todos los campos';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Пожалуйста, заполните все поля';
-      }
-      break;
-    }
-    case 'Please fill in your username and password!': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Por favor, informe seu e-mail e senha!';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Por favor, ingresa tu nombre de usuario y contraseña!';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Пожалуйста, введите свое имя пользователя и пароль!';
-      }
-      break;
-    }
-    case 'Please type at least 3 characters': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Por favor, digite pelo menos 3 letras';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Por favor, escriba al menos 3 caracteres';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Пожалуйста, введите не менее 3 символов';
-      }
-      break;
-    }
-    case 'The maximum text length is 2000': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'O tamanho máximo do texto é 2000';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'La longitud máxima del texto es 2000';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Максимальная длина текста — 2000.';
-      }
-      break;
-    }
-    case 'Unknown error': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Erro desconhecido';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return 'Error desconocido';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неизвестная ошибка';
-      }
-      break;
-    }
-    case 'Wrong or missing information!': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'Informação errada ou incompleta!';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Información incorrecta o incompleta!';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неверная или отсутствующая информация!';
-      }
-      break;
-    }
-    case 'Wrong user or password': {
-      if (lang === USER_LANG.PORTUGUESE) {
-        return 'E-mail ou senha inválidos!';
-      }
-      else if (lang === USER_LANG.SPANISH) {
-        return '¡Usuario o contraseña incorrectos!';
-      }
-      else if (lang === USER_LANG.RUSSIAN) {
-        return 'Неправильный пользователь или пароль';
-      }
-      break;
-    }
-    default: return '';
+  return message;
+}
+
+/**
+ * Translates a server response message from English to a target language.
+ *
+ * @param {string} message The text message to be translated.
+ * @param {string} target The target language to be translated.
+ * @returns The translated message.
+ */
+function translateServerResponse(message: string, target: string): string {
+  if (target === USER_LANG.PORTUGUESE) {
+    return translateServerResponsePtBr(message);
   }
+  if (target === USER_LANG.SPANISH) {
+    return translateServerResponseEs(message);
+  }
+
+  return translateServerResponseRu(message);
+}
 
-  return '';
+/**
+ * Translates all responses from tasks server API.
+ *
+ * @param {TaskResponse[]} tasks The tasks to be translated.
+ * @param {string} target The target language.
+ * @returns {TaskResponse[]} Array of tasks translated into the target language.
+ */
+function translateTaskResponse(tasks: TaskResponse[], target: string): TaskResponse[] {
+  tasks.forEach((task: TaskResponse) => {
+    task.lastUpdate = translateTimeMessage(task.lastUpdate, target);
+    if (task.dueDateFmt) {
+      task.dueDateFmt = translateTimeMessage(task.dueDateFmt, target);
+    }
+  });
+  return tasks;
 }
 
-export { translateTaskResponse, translateMessage };
+export { translateTaskResponse, translateServerResponse };
diff --git a/client/src/views/Home/index.tsx b/client/src/views/Home/index.tsx
index 1e7a976..f349d22 100644
--- a/client/src/views/Home/index.tsx
+++ b/client/src/views/Home/index.tsx
@@ -14,7 +14,7 @@ import { NoteResponse } from '../../types/NoteResponse';
 import api from '../../api-service/api';
 import ApiConfig from '../../api-service/apiConfig';
 import { handleDefaultLang } from '../../lang-service/LangHandler';
-import { translateMessage } from '../../utils/TranslatorUtils';
+import { translateServerResponse } from '../../utils/TranslatorUtils';
 
 /**
  * Home page component.
@@ -34,10 +34,10 @@ function Home(): JSX.Element {
 
   const handleError = (e: unknown): void => {
     if (typeof e === 'string') {
-      setErrorMessage(translateMessage(e, i18n.language));
+      setErrorMessage(translateServerResponse(e, i18n.language));
     }
     else if (e instanceof Error) {
-      setErrorMessage(translateMessage(e.message, i18n.language));
+      setErrorMessage(translateServerResponse(e.message, i18n.language));
     }
   };
 
@@ -71,7 +71,7 @@ function Home(): JSX.Element {
     const form = event.currentTarget;
     if (form.checkValidity() === false) {
       setFormInvalid(true);
-      setErrorMessage(translateMessage('Please type at least 3 characters', i18n.language));
+      setErrorMessage(translateServerResponse('Please type at least 3 characters', i18n.language));
       return;
     }
 
diff --git a/client/src/views/Note/index.tsx b/client/src/views/Note/index.tsx
index 39aba2a..86db9d0 100644
--- a/client/src/views/Note/index.tsx
+++ b/client/src/views/Note/index.tsx
@@ -7,7 +7,7 @@ import TaskNoteRequest from '../../types/TaskNoteRequest';
 import { NoteResponse } from '../../types/NoteResponse';
 import api from '../../api-service/api';
 import ApiConfig from '../../api-service/apiConfig';
-import { translateMessage } from '../../utils/TranslatorUtils';
+import { translateServerResponse } from '../../utils/TranslatorUtils';
 import './style.css';
 
 type NoteAction = 'add' | 'edit';
@@ -29,11 +29,11 @@ function Note(): JSX.Element {
 
   const handleError = (e: unknown): void => {
     if (typeof e === 'string') {
-      setErrorMessage(translateMessage(e, i18n.language));
+      setErrorMessage(translateServerResponse(e, i18n.language));
       setFormInvalid(true);
     }
     else if (e instanceof Error) {
-      setErrorMessage(translateMessage(e.message, i18n.language));
+      setErrorMessage(translateServerResponse(e.message, i18n.language));
       setFormInvalid(true);
     }
   };
@@ -92,13 +92,13 @@ function Note(): JSX.Element {
     const form = event.currentTarget;
     if (form.checkValidity() === false) {
       setFormInvalid(true);
-      setErrorMessage(translateMessage('Please fill in all the fields', i18n.language));
+      setErrorMessage(translateServerResponse('Please fill in all the fields', i18n.language));
       return;
     }
 
     if (form.note_description.value.length > 2000) {
       setFormInvalid(true);
-      setErrorMessage(translateMessage('The maximum text length is 2000', i18n.language));
+      setErrorMessage(translateServerResponse('The maximum text length is 2000', i18n.language));
       return;
     }
 
diff --git a/client/src/views/Task/index.tsx b/client/src/views/Task/index.tsx
index c77b299..0476249 100644
--- a/client/src/views/Task/index.tsx
+++ b/client/src/views/Task/index.tsx
@@ -22,7 +22,7 @@ import { TaskResponse, TaskUrlResponse } from '../../types/TaskResponse';
 import { useTranslation } from 'react-i18next';
 import api from '../../api-service/api';
 import ApiConfig from '../../api-service/apiConfig';
-import { translateMessage, translateTaskResponse } from '../../utils/TranslatorUtils';
+import { translateServerResponse, translateTaskResponse } from '../../utils/TranslatorUtils';
 import './style.css';
 
 type TaskAction = 'add' | 'edit';
@@ -47,11 +47,11 @@ function Task(): JSX.Element {
 
   const handleError = (e: unknown): void => {
     if (typeof e === 'string') {
-      setErrorMessage(translateMessage(e, i18n.language));
+      setErrorMessage(translateServerResponse(e, i18n.language));
       setFormInvalid(true);
     }
     else if (e instanceof Error) {
-      setErrorMessage(translateMessage(e.message, i18n.language));
+      setErrorMessage(translateServerResponse(e.message, i18n.language));
       setFormInvalid(true);
     }
   };
@@ -119,7 +119,7 @@ function Task(): JSX.Element {
     const form = event.currentTarget;
     if (form.checkValidity() === false) {
       setFormInvalid(true);
-      setErrorMessage(translateMessage('Please fill in all the fields', i18n.language));
+      setErrorMessage(translateServerResponse('Please fill in all the fields', i18n.language));
       return;
     }