diff --git a/embassy-stm32/src/time.rs b/embassy-stm32/src/time.rs
index 802ff41ce6..71fe668a98 100644
--- a/embassy-stm32/src/time.rs
+++ b/embassy-stm32/src/time.rs
@@ -1,5 +1,6 @@
 //! Time units
 
+use core::fmt::Display;
 use core::ops::{Div, Mul};
 
 /// Hertz
@@ -7,6 +8,12 @@ use core::ops::{Div, Mul};
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct Hertz(pub u32);
 
+impl Display for Hertz {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        write!(f, "{} Hz", self.0)
+    }
+}
+
 impl Hertz {
     /// Create a `Hertz` from the given hertz.
     pub const fn hz(hertz: u32) -> Self {