Trait Clock 

pub trait Clock: Send + Sync {
    // Required method
    fn now(&self) -> SystemTime;
}

Supplies wall-clock time without making core services read the system clock.

Production runtimes can implement this trait with SystemTime::now, while tests use a fixed or manually advanced clock.

Required Methods

fn now(&self) -> SystemTime

Returns the current wall-clock time.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<F> Clock for F

where F: Fn() -> SystemTime + Send + Sync,