dirbaio[m]: > <@dirbaio:matrix.org> perhaps this?
> 
> ```rust
> struct OverflowError;
> 
> trait Duration: Copy + Eq + PartialEq + Hash + Add + Sub + Mul<u32> + Div<u32> {
>     fn from_secs(secs: u32) -> Result<Self, OverflowError>;
>     fn from_millis(millis: u32) -> Result<Self, OverflowError>;
>     fn from_micros(micros: u32) -> Result<Self, OverflowError>;
>     fn as_secs(self) -> Result<u32, OverflowError>;
>     fn as_millis(self) -> Result<u32, OverflowError>;
>     fn as_micros(self) -> Result<u32, OverflowError>;
> }
> 
> trait Timer {
>     type Duration: Duration;
>     /// Starts or restarts the timer at 0
>     fn start(&mut self);
>     fn read(&mut self) -> Result<Duration, OverflowError>;
> }
> ```

Should Duration be a trait? Idk... Maybe? There are pros to mandating u32 or  u64 for it with a concrete type (or even just use the core lib Duration type?)