diff --git a/src/components/app.rs b/src/components/app.rs
index 708b0f5..7f74f23 100644
--- a/src/components/app.rs
+++ b/src/components/app.rs
@@ -4,11 +4,17 @@ use dioxus::dioxus_core::Element;
 use dioxus::prelude::*;
 use dioxus_query::prelude::{use_init_query_client};
 use crate::query::{QueryErrors, QueryKey, QueryValue};
+use dioxus_sdk::i18n::{use_init_i18n};
+use crate::internationalization::get_languages;
+use crate::server::internationalization::get_language_identifier;
 
 #[component]
 pub(crate) fn App() -> Element {
     use_init_query_client::<QueryValue, QueryErrors, QueryKey>();
     
+    let language_identifier = use_server_future(get_language_identifier)?.unwrap().unwrap();
+    use_init_i18n(language_identifier.clone(), language_identifier, get_languages);
+    
     rsx! {
         div {
             class: "min-h-screen text-zinc-200 bg-zinc-800 pt-4 pb-36",
diff --git a/src/components/pages/category_calendar_page.rs b/src/components/pages/category_calendar_page.rs
index 2a31b42..1747ea5 100644
--- a/src/components/pages/category_calendar_page.rs
+++ b/src/components/pages/category_calendar_page.rs
@@ -1,13 +1,16 @@
+use crate::components::task_list::TaskList;
+use crate::internationalization::LocaleFromLanguageIdentifier;
 use crate::models::category::Category;
-use chrono::{Datelike, Local, Locale};
+use crate::models::task::TaskWithSubtasks;
+use crate::query::tasks::use_tasks_with_subtasks_in_category_query;
+use crate::query::QueryValue;
+use chrono::{Datelike, Local};
 use dioxus::core_macro::rsx;
 use dioxus::dioxus_core::Element;
 use dioxus::prelude::*;
 use dioxus_query::prelude::QueryResult;
-use crate::components::task_list::TaskList;
-use crate::query::QueryValue;
-use crate::query::tasks::use_tasks_with_subtasks_in_category_query;
-use crate::models::task::{TaskWithSubtasks};
+use dioxus_sdk::i18n::use_i18;
+use dioxus_sdk::translate;
 
 const CALENDAR_LENGTH_DAYS: usize = 366 * 3;
 
@@ -20,6 +23,8 @@ pub(crate) fn CategoryCalendarPage() -> Element {
     });
     let tasks_query_result = tasks.result();
 
+    let i18 = use_i18();
+
     rsx! {
         match tasks_query_result.value() {
             QueryResult::Ok(QueryValue::TasksWithSubtasks(tasks))
@@ -37,14 +42,17 @@ pub(crate) fn CategoryCalendarPage() -> Element {
                                     div {
                                         class: "pt-1",
                                         {
-                                            date_current
-                                            .format_localized(
-                                                format!(
-                                                    "%A %-d. %B{}", 
-                                                    if date_current.year() != today_date.year()
-                                                    {" %Y"} else {""}
+                                            date_current.format_localized(translate!(
+                                                    i18,
+                                                    if date_current.year() == Local::now().year() {
+                                                        "formats.date_weekday_format"
+                                                    } else {
+                                                        "formats.date_weekday_year_format"
+                                                    }
                                                 ).as_str(),
-                                                Locale::en_US
+                                                LocaleFromLanguageIdentifier::from(
+                                                    &(i18.selected_language)()
+                                                ).into()
                                             )
                                             .to_string()
                                         }
diff --git a/src/components/pages/category_today_page.rs b/src/components/pages/category_today_page.rs
index 7122eb3..40d77f2 100644
--- a/src/components/pages/category_today_page.rs
+++ b/src/components/pages/category_today_page.rs
@@ -1,12 +1,16 @@
 use crate::components::task_list::TaskList;
+use crate::components::task_list_item::TaskListItem;
+use crate::internationalization::LocaleFromLanguageIdentifier;
 use crate::models::category::Category;
 use crate::models::task::TaskWithSubtasks;
-use crate::query::tasks::{use_tasks_with_subtasks_in_category_query};
+use crate::query::tasks::use_tasks_with_subtasks_in_category_query;
 use crate::query::QueryValue;
-use chrono::{Local, Locale};
+use chrono::Local;
 use dioxus::prelude::*;
 use dioxus_query::prelude::QueryResult;
-use crate::components::task_list_item::TaskListItem;
+use dioxus_sdk::i18n::use_i18;
+use dioxus_sdk::translate;
+use voca_rs::Voca;
 
 #[component]
 pub(crate) fn CategoryTodayPage() -> Element {
@@ -22,6 +26,8 @@ pub(crate) fn CategoryTodayPage() -> Element {
     let long_term_tasks_query = use_tasks_with_subtasks_in_category_query(Category::LongTerm);
     let long_term_tasks_query_result = long_term_tasks_query.result();
 
+    let i18 = use_i18();
+
     rsx! {
         div {
             class: "pt-4 flex flex-col gap-8",
@@ -40,7 +46,7 @@ pub(crate) fn CategoryTodayPage() -> Element {
                                 }
                                 div {
                                     class: "mt-1",
-                                    "Long-term"
+                                    {translate!(i18, "long_term")._upper_first()}
                                 }
                             }
                             div {
@@ -103,7 +109,7 @@ pub(crate) fn CategoryTodayPage() -> Element {
                                     }
                                     div {
                                         class: "mt-1",
-                                        "Overdue"
+                                        {translate!(i18, "overdue")._upper_first()}
                                     }
                                 }
                                 TaskList {
@@ -122,9 +128,23 @@ pub(crate) fn CategoryTodayPage() -> Element {
                                 div {
                                     class: "mt-1",
                                     {
-                                        today_date
-                                        .format_localized("Today, %A %-d. %B", Locale::en_US)
-                                        .to_string()
+                                        let format = translate!(i18, "formats.date_weekday_format");
+                                        let today_date = today_date.format_localized(
+                                            format.as_str(),
+                                            LocaleFromLanguageIdentifier::from(
+                                                &(i18.selected_language)()
+                                            ).into()
+                                        ).to_string();
+                                        format!(
+                                            "{} – {}",
+                                            translate!(i18, "today")._upper_first(),
+                                            if translate!(i18, "formats.weekday_lowercase_first")
+                                                .parse().unwrap() {
+                                                today_date._lower_first()
+                                            } else {
+                                                today_date
+                                            }
+                                        )
                                     }
                                 }
                             }
diff --git a/src/components/task_form.rs b/src/components/task_form.rs
index b6e6a42..1dd3696 100644
--- a/src/components/task_form.rs
+++ b/src/components/task_form.rs
@@ -1,5 +1,6 @@
 use crate::components::category_input::CategoryInput;
 use crate::components::reoccurrence_input::ReoccurrenceIntervalInput;
+use crate::components::subtasks_form::SubtasksForm;
 use crate::models::category::{CalendarTime, Category, Reoccurrence};
 use crate::models::task::NewTask;
 use crate::models::task::Task;
@@ -7,12 +8,14 @@ use crate::query::{QueryErrors, QueryKey, QueryValue};
 use crate::route::Route;
 use crate::server::projects::get_projects;
 use crate::server::tasks::{create_task, delete_task, edit_task};
-use chrono::{Duration};
+use chrono::Duration;
 use dioxus::core_macro::{component, rsx};
 use dioxus::dioxus_core::Element;
 use dioxus::prelude::*;
 use dioxus_query::prelude::use_query_client;
-use crate::components::subtasks_form::SubtasksForm;
+use dioxus_sdk::i18n::use_i18;
+use dioxus_sdk::translate;
+use voca_rs::Voca;
 
 const REMINDER_OFFSETS: [Option<Duration>; 17] = [
     None,
@@ -79,6 +82,8 @@ pub(crate) fn TaskForm(task: Option<Task>, on_successful_submit: EventHandler<()
     let query_client = use_query_client::<QueryValue, QueryErrors, QueryKey>();
     let task_for_submit = task.clone();
 
+    let i18 = use_i18();
+
     rsx! {
         div {
             class: "p-4 flex flex-col gap-4",
@@ -172,7 +177,7 @@ pub(crate) fn TaskForm(task: Option<Task>, on_successful_submit: EventHandler<()
                         id: "input_project",
                         option {
                             value: 0,
-                            "None"
+                            {translate!(i18, "none")}
                         },
                         for project in projects {
                             option {
@@ -330,13 +335,14 @@ pub(crate) fn TaskForm(task: Option<Task>, on_successful_submit: EventHandler<()
                                 label {
                                     r#for: "category_calendar_reminder_offset_index",
                                     class: "pr-3 min-w-16 text-right",
-                                    {REMINDER_OFFSETS[category_calendar_reminder_offset_index()].map(
-                                        |offset| if offset.num_hours() < 1 {
-                                            format!("{} min", offset.num_minutes())
-                                        } else {
-                                            format!("{} h", offset.num_hours())
-                                        }
-                                    ).unwrap_or_else(|| "none".to_string())}
+                                    {REMINDER_OFFSETS[category_calendar_reminder_offset_index()]
+                                        .map(
+                                            |offset| if offset.num_hours() < 1 {
+                                                format!("{} min", offset.num_minutes())
+                                            } else {
+                                                format!("{} h", offset.num_hours())
+                                            }
+                                        ).unwrap_or_else(|| translate!(i18, "none"))}
                                 }
                             }
                         }
diff --git a/src/components/task_list_item.rs b/src/components/task_list_item.rs
index c8835b9..ed67c82 100644
--- a/src/components/task_list_item.rs
+++ b/src/components/task_list_item.rs
@@ -1,12 +1,18 @@
-use chrono::{Datelike, Local};
+use crate::internationalization::LocaleFromLanguageIdentifier;
 use crate::models::category::Category;
 use crate::models::task::TaskWithSubtasks;
+use chrono::{Datelike, Local};
 use dioxus::core_macro::rsx;
 use dioxus::dioxus_core::Element;
 use dioxus::prelude::*;
+use dioxus_sdk::i18n::use_i18;
+use dioxus_sdk::translate;
+use voca_rs::Voca;
 
 #[component]
 pub(crate) fn TaskListItem(task: TaskWithSubtasks) -> Element {
+    let i18 = use_i18();
+
     rsx! {
         div {
             class: "flex flex-col",
@@ -22,11 +28,47 @@ pub(crate) fn TaskListItem(task: TaskWithSubtasks) -> Element {
                         i {
                             class: "fa-solid fa-bomb"
                         },
-                        {deadline.format(if deadline.year() == Local::now().year() {
-                            " %m. %-d."
-                        } else {
-                            " %m. %-d. %Y"
-                        }).to_string()}
+                        {
+                            let today_date = Local::now().date_naive();
+                            format!(
+                                " {}",
+                                if deadline == today_date - chrono::Days::new(1) {
+                                    translate!(i18, "yesterday")
+                                } else if deadline == today_date {
+                                    translate!(i18, "today")
+                                } else if deadline == today_date + chrono::Days::new(1) {
+                                    translate!(i18, "tomorrow")
+                                } else if deadline > today_date
+                                    && deadline <= today_date + chrono::Days::new(7) {
+                                    let deadline = deadline.format_localized(
+                                        "%A",
+                                        LocaleFromLanguageIdentifier::from(
+                                            &(i18.selected_language)()
+                                        ).into()
+                                    ).to_string();
+                                    if translate!(i18, "formats.weekday_lowercase_first")
+                                        .parse().unwrap() {
+                                        deadline._lower_first()
+                                    } else {
+                                        deadline
+                                    }
+                                } else {
+                                    let format = translate!(i18,
+                                        if deadline.year() == today_date.year() {
+                                            "formats.date_format"
+                                        } else {
+                                            "formats.date_year_format"
+                                        }
+                                    );
+                                    deadline.format_localized(
+                                        format.as_str(),
+                                        LocaleFromLanguageIdentifier::from(
+                                            &(i18.selected_language)()
+                                        ).into()
+                                    ).to_string()
+                                }
+                            )
+                        }
                     }
                 }
                 if let Category::Calendar { time, .. } = task.task().category() {
@@ -36,7 +78,10 @@ pub(crate) fn TaskListItem(task: TaskWithSubtasks) -> Element {
                             i {
                                 class: "fa-solid fa-clock"
                             },
-                            {calendar_time.time().format(" %k:%M").to_string()}
+                            {
+                                let format = translate!(i18, "formats.time_format");
+                                format!(" {}",calendar_time.time().format(format.as_str()))
+                            }
                         }
                     }
                 }