diff --git a/src/clock.rs b/src/clock.rs
index bd7420b..0bdb49f 100644
--- a/src/clock.rs
+++ b/src/clock.rs
@@ -222,7 +222,7 @@ impl Clock {
     ) -> anyhow::Result<()> {
         let tick_rate = std::time::Duration::from_millis(100);
         let mut last_tick = Instant::now();
-        let mut uidata: Data = Data::new(self.timebar_len().unwrap());
+        let mut uidata: Data = Data::new(self.timebar_len());
         self.setup()?;
         loop {
             let raw_time = chrono::Local::now().round_subsecs(0);
diff --git a/src/clock/ui.rs b/src/clock/ui.rs
index 6f7d09a..97960d5 100644
--- a/src/clock/ui.rs
+++ b/src/clock/ui.rs
@@ -19,14 +19,14 @@ pub struct Data {
     ftime: [String; 2],
     timebar_ratio: [Option<f64>; 2],
 
-    timebar_type: TimeBarLength,
+    timebar_type: Option<TimeBarLength>,
     started_at: DateTime<Local>,
 
     idx: usize,
 }
 
 impl Data {
-    pub fn new(timebar_type: TimeBarLength) -> Self {
+    pub fn new(timebar_type: Option<TimeBarLength>) -> Self {
         let mut this = Self {
             now: [DateTime::default(); 2],
             fdate: [String::new(), String::new()],
@@ -91,7 +91,7 @@ impl Data {
     #[inline]
     #[allow(clippy::missing_const_for_fn)] // no it's not const
     pub fn timebar_ratio(&self) -> Option<f64> {
-        if self.timebar_type == TimeBarLength::Timer {
+        if self.timebar_type.is_some() && self.timebar_type.unwrap() == TimeBarLength::Timer {
             return Some(0.0);
         }
         self.timebar_ratio[self.idx]
diff --git a/src/main.rs b/src/main.rs
index 679b2c4..99ef68e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -90,7 +90,7 @@ fn mock_tests() {
         info!("0s=0.0");
     }
     {
-        let mut data = Data::new(clock::timebar::TimeBarLength::Day);
+        let mut data = Data::new(None);
         let now = Local::now();
         data.update(now, "date".to_owned(), "time".to_owned(), Some(0.1));
         assert_eq!(data.timebar_ratio(), Some(0.1));