diff --git a/toolkit.lisp b/toolkit.lisp
index ae7757f9a..f2d522d4a 100644
--- a/toolkit.lisp
+++ b/toolkit.lisp
@@ -109,22 +109,14 @@
   (dolist (sub (c2mop:class-direct-subclasses class))
     (apply-class-changes sub)))
 
-#+sbcl
-(define-symbol-macro current-time-start
-    (load-time-value (logand (sb-ext:get-time-of-day) (1- (expt 2 32)))))
-
 (declaim (inline current-time))
 (defun current-time ()
   (declare (optimize speed (safety 0)))
-  #+sbcl (multiple-value-bind (s ms) (sb-ext:get-time-of-day)
-           (let* ((s (logand s (1- (expt 2 62))))
-                  (ms (logand ms (1- (expt 2 62)))))
-             (declare (type (unsigned-byte 62) s ms))
-             (+ (- s current-time-start)
-                (* ms
-                   (coerce 1/1000000 'double-float)))))
-  #-sbcl (* (get-internal-real-time)
-            (coerce (/ internal-time-units-per-second) 'double-float)))
+  (multiple-value-bind (s ms) (org.shirakumo.precise-time:get-monotonic-time)
+    (let* ((s (logand s (1- (expt 2 62))))
+           (ms (logand ms (1- (expt 2 62)))))
+      (declare (type (unsigned-byte 62) s ms))
+      (+ s (* ms (load-time-value (coerce (/ org.shirakumo.precise-time:MONOTONIC-TIME-UNITS-PER-SECOND) 'double-float)))))))
 
 (defmacro undefmethod (name &rest args)
   (flet ((lambda-keyword-p (symbol)
diff --git a/trial.asd b/trial.asd
index 5fc12d170..622af9158 100644
--- a/trial.asd
+++ b/trial.asd
@@ -198,6 +198,7 @@
                :mmap
                :nibbles
                :pathname-utils
+               :precise-time
                :promise
                :quickhull
                :random-sampling