diff --git a/src/jtk/timer.d b/src/jtk/timer.d
index 14085ac..f93afd4 100644
--- a/src/jtk/timer.d
+++ b/src/jtk/timer.d
@@ -15,9 +15,9 @@ class Timer
 
     this(ulong delay, ulong interval, void * user)
     {
-        ulong current_time = ms_time();
-        this.next = current_time + delay;
-        this.interval = interval;
+        ulong current_time = us_time();
+        this.next = current_time + (delay * 1000u);
+        this.interval = interval * 1000u;
         this.user = user;
         timers[this] = this;
     }
@@ -41,7 +41,7 @@ class Timer
 
     static Timer get_expired_timer()
     {
-        ulong current_time = ms_time();
+        ulong current_time = us_time();
         foreach (Timer timer; timers)
         {
             if (timer.next <= current_time)
@@ -55,7 +55,7 @@ class Timer
     static ulong time_to_next_timer_expiration()
     {
         ulong rv = cast(ulong)-1;
-        ulong current_time = ms_time();
+        ulong current_time = us_time();
         foreach (Timer timer; timers)
         {
             if (timer.next <= current_time)