diff --git a/Cargo.lock b/Cargo.lock
index b9dc7ea..ce96d88 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -642,6 +642,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a41953f86f8a05768a6cda24def994fd2f424b04ec5c719cf89989779f199071"
 dependencies = [
  "powerfmt",
+ "serde_core",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 874a5db..5660ddd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ tracing = "0.1.41"
 tracing-subscriber = { version = "0.3.20", features = ["env-filter"] }
 directories = "5.0.1"
 clap = { version = "4.5.48", features = ["derive"] }
-time = { version = "0.3.44", features = ["formatting", "local-offset", "parsing", "macros"] }
+time = { version = "0.3.44", features = ["formatting", "local-offset", "parsing", "macros", "serde"] }
 notify-rust = "4.11.7"
 rodio = { version = "0.20.1", features = [
     "symphonia-mp3",
diff --git a/src/app.rs b/src/app.rs
index 30f0174..be7f2b9 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -2,7 +2,7 @@ use crate::{
     args::Args,
     common::{AppEditMode, AppTime, AppTimeFormat, ClockTypeId, Content, Style, Toggle},
     constants::TICK_VALUE_MS,
-    event::{Event, get_default_event},
+    event::Event,
     events::{self, TuiEventHandler},
     storage::AppStorage,
     terminal::Terminal,
@@ -135,7 +135,7 @@ impl From<FromAppArgs> for App {
                 None => stg.elapsed_value_countdown,
             },
             current_value_timer: stg.current_value_timer,
-            event: args.event.unwrap_or_else(get_default_event),
+            event: args.event.unwrap_or(stg.event),
             app_tx,
             #[cfg(feature = "sound")]
             sound_path: args.sound,
@@ -470,6 +470,7 @@ impl App {
             ),
             elapsed_value_countdown: Duration::from(*self.countdown.get_elapsed_value()),
             current_value_timer: Duration::from(*self.timer.get_clock().get_current_value()),
+            event: self.event.get_event(),
             footer_app_time: self.footer.app_time_format().is_some().into(),
         }
     }
diff --git a/src/event.rs b/src/event.rs
index 93f33b0..e3edc9d 100644
--- a/src/event.rs
+++ b/src/event.rs
@@ -1,21 +1,20 @@
-use time::macros::format_description;
+use serde::{Deserialize, Serialize};
+use time::macros::{datetime, format_description};
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct Event {
     pub date_time: time::PrimitiveDateTime,
     pub title: Option<String>,
 }
 
-pub fn get_default_event() -> Event {
-    Event {
-        date_time: time::PrimitiveDateTime::parse(
+impl Default for Event {
+    fn default() -> Self {
+        Self {
             // Mario Bros. "...entered mass production in Japan on June 21" 1983
             // https://en.wikipedia.org/wiki/Mario_Bros.#Release
-            "1983-06-21 00:00",
-            format_description!("[year]-[month]-[day] [hour]:[minute]"),
-        )
-        .unwrap(),
-        title: Some("Release date of Mario Bros. in Japan".into()),
+            date_time: datetime!(1983-06-21 00:00),
+            title: Some("Release date of Mario Bros. in Japan".into()),
+        }
     }
 }
 
diff --git a/src/storage.rs b/src/storage.rs
index 000645e..9d64378 100644
--- a/src/storage.rs
+++ b/src/storage.rs
@@ -1,5 +1,6 @@
 use crate::{
     common::{AppTimeFormat, Content, Style, Toggle},
+    event::Event,
     widgets::pomodoro::Mode as PomodoroMode,
 };
 use color_eyre::eyre::Result;
@@ -44,6 +45,8 @@ pub struct AppStorage {
     pub elapsed_value_countdown: Duration,
     // timer
     pub current_value_timer: Duration,
+    // event
+    pub event: Event,
     // footer
     pub footer_app_time: Toggle,
 }
@@ -75,6 +78,8 @@ impl Default for AppStorage {
             elapsed_value_countdown: Duration::ZERO,
             // timer
             current_value_timer: Duration::ZERO,
+            // event
+            event: Event::default(),
             // footer
             footer_app_time: Toggle::Off,
         }
diff --git a/src/widgets/clock_test.rs b/src/widgets/clock_test.rs
index a6b56aa..5935d57 100644
--- a/src/widgets/clock_test.rs
+++ b/src/widgets/clock_test.rs
@@ -203,7 +203,7 @@ fn test_format_by_duration_boundaries() {
         Format::YyyDddHhMmSs
     );
 
-    // YyyDdHhMmSs
+    // YyyyDdHhMmSs
     assert_eq!(
         format_by_duration::<DurationEx>(&(1000 * ONE_YEAR + 10 * ONE_DAY).into()),
         Format::YyyyDdHhMmSs
diff --git a/src/widgets/event.rs b/src/widgets/event.rs
index 91a37d4..a7295d0 100644
--- a/src/widgets/event.rs
+++ b/src/widgets/event.rs
@@ -73,6 +73,13 @@ impl EventState {
         self.with_decis = with_decis;
     }
 
+    pub fn get_event(&self) -> Event {
+        Event {
+            title: self.title.clone(),
+            date_time: time::PrimitiveDateTime::new(self.event_time.date(), self.event_time.time()),
+        }
+    }
+
     pub fn get_percentage_done(&self) -> u16 {
         get_percentage(self.start_time, self.event_time, self.app_time)
     }