diff --git a/Cargo.toml b/Cargo.toml
index 70b1e92..816f4c9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pulse"
-version = "0.5.3"
+version = "0.5.4"
 authors = ["Colin Sherratt <colin.sherratt@gmail.com>"]
 license = "Apache-2.0"
 description = "A library for async wake signals"
@@ -8,7 +8,6 @@ homepage = "https://github.com/csherratt/pulse"
 
 [dependencies]
 atom = "0.3"
-time = "0.1"
 
 [features]
 default = []
diff --git a/src/lib.rs b/src/lib.rs
index f874e76..b5a72d5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,7 +13,6 @@
 //   limitations under the License.
 
 extern crate atom;
-extern crate time;
 
 use std::sync::atomic::AtomicUsize;
 use std::thread;
@@ -24,9 +23,10 @@ use std::sync::atomic::Ordering;
 use std::cell::RefCell;
 
 use atom::*;
-use time::precise_time_s;
 use fnbox::FnBox;
 
+use std::time::{Duration,Instant};
+
 pub use select::{Select, SelectMap};
 pub use barrier::Barrier;
 mod select;
@@ -517,17 +517,17 @@ impl Scheduler for ThreadScheduler {
     }
 
     fn wait_timeout_ms(&self, signal: Signal, ms: u32) -> Result<(), TimeoutError> {
-        let mut now = (precise_time_s() * 1000.) as u64;
-        let end = now + ms as u64;
+        let now = Instant::now();
+        let total = Duration::from_millis(ms as _);
 
         loop {
             let id = signal.add_to_waitlist(Waiting::thread());
             if signal.is_pending() {
-                now = (precise_time_s() * 1000.) as u64;
-                if now > end {
+                let elapsed = now.elapsed();
+                if elapsed > total {
                     return Err(TimeoutError::Timeout);
                 }
-                thread::park_timeout_ms((end - now) as u32);
+                thread::park_timeout(total - elapsed);
             }
             signal.remove_from_waitlist(id);