diff --git a/init/Android.mk b/init/Android.mk
index 53ef2d0..9e61fb2 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -36,7 +36,7 @@
 LOCAL_SRC_FILES := \
     parser/tokenizer_test.cpp \
 
-LOCAL_STATIC_LIBRARIES := libbase libinit_parser
+LOCAL_STATIC_LIBRARIES := libinit_parser
 LOCAL_CLANG := true
 include $(BUILD_HOST_NATIVE_TEST)
 endif
diff --git a/init/init.cpp b/init/init.cpp
index 4af0656..43f601f 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -40,7 +40,6 @@
 #include <selinux/label.h>
 #include <selinux/android.h>
 
-#include <android-base/chrono_utils.h>
 #include <android-base/file.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
@@ -69,7 +68,6 @@
 #include "util.h"
 #include "watchdogd.h"
 
-using android::base::boot_clock;
 using android::base::StringPrintf;
 
 struct selabel_handle *sehandle;
@@ -752,7 +750,7 @@
         return watchdogd_main(argc, argv);
     }
 
-    boot_clock::time_point start_time = android::base::boot_clock::now();
+    boot_clock::time_point start_time = boot_clock::now();
 
     // Clear the umask.
     umask(0);
diff --git a/init/service.cpp b/init/service.cpp
index cbdc4a8..e186f27 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -32,7 +32,6 @@
 
 #include <selinux/selinux.h>
 
-#include <android-base/chrono_utils.h>
 #include <android-base/file.h>
 #include <android-base/parseint.h>
 #include <android-base/stringprintf.h>
@@ -48,7 +47,6 @@
 #include "property_service.h"
 #include "util.h"
 
-using android::base::boot_clock;
 using android::base::ParseInt;
 using android::base::StringPrintf;
 using android::base::WriteStringToFile;
diff --git a/init/service.h b/init/service.h
index 3dc0e53..013e65f 100644
--- a/init/service.h
+++ b/init/service.h
@@ -25,8 +25,6 @@
 #include <string>
 #include <vector>
 
-#include <android-base/chrono_utils.h>
-
 #include "action.h"
 #include "capabilities.h"
 #include "descriptors.h"
@@ -137,8 +135,8 @@
 
     unsigned flags_;
     pid_t pid_;
-    android::base::boot_clock::time_point time_started_; // time of last start
-    android::base::boot_clock::time_point time_crashed_; // first crash within inspection window
+    boot_clock::time_point time_started_; // time of last start
+    boot_clock::time_point time_crashed_; // first crash within inspection window
     int crash_count_;                     // number of times crashed within window
 
     uid_t uid_;
diff --git a/init/util.cpp b/init/util.cpp
index f59ba82..888a366 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -51,8 +51,6 @@
 #include "property_service.h"
 #include "util.h"
 
-using android::base::boot_clock;
-
 static unsigned int do_decode_uid(const char *s)
 {
     unsigned int v;
@@ -201,16 +199,11 @@
     return success;
 }
 
-Timer::Timer() : start_(boot_clock::now()) {
-}
-
-double Timer::duration_s() const {
-  typedef std::chrono::duration<double> double_duration;
-  return std::chrono::duration_cast<double_duration>(boot_clock::now() - start_).count();
-}
-
-int64_t Timer::duration_ms() const {
-  return std::chrono::duration_cast<std::chrono::milliseconds>(boot_clock::now() - start_).count();
+boot_clock::time_point boot_clock::now() {
+  timespec ts;
+  clock_gettime(CLOCK_BOOTTIME, &ts);
+  return boot_clock::time_point(std::chrono::seconds(ts.tv_sec) +
+                                std::chrono::nanoseconds(ts.tv_nsec));
 }
 
 int mkdir_recursive(const char *pathname, mode_t mode)
diff --git a/init/util.h b/init/util.h
index 4444427..5c38dc3 100644
--- a/init/util.h
+++ b/init/util.h
@@ -25,8 +25,6 @@
 #include <ostream>
 #include <string>
 
-#include <android-base/chrono_utils.h>
-
 #define COLDBOOT_DONE "/dev/.coldboot_done"
 
 using namespace std::chrono_literals;
@@ -37,16 +35,32 @@
 bool read_file(const char* path, std::string* content);
 bool write_file(const char* path, const char* content);
 
+// A std::chrono clock based on CLOCK_BOOTTIME.
+class boot_clock {
+ public:
+  typedef std::chrono::nanoseconds duration;
+  typedef std::chrono::time_point<boot_clock, duration> time_point;
+  static constexpr bool is_steady = true;
+
+  static time_point now();
+};
+
 class Timer {
  public:
-  Timer();
+  Timer() : start_(boot_clock::now()) {
+  }
 
-  double duration_s() const;
+  double duration_s() const {
+    typedef std::chrono::duration<double> double_duration;
+    return std::chrono::duration_cast<double_duration>(boot_clock::now() - start_).count();
+  }
 
-  int64_t duration_ms() const;
+  int64_t duration_ms() const {
+    return std::chrono::duration_cast<std::chrono::milliseconds>(boot_clock::now() - start_).count();
+  }
 
  private:
-  android::base::boot_clock::time_point start_;
+  boot_clock::time_point start_;
 };
 
 std::ostream& operator<<(std::ostream& os, const Timer& t);