diff --git a/tensorflow/lite/micro/apollo3evb/micro_time.cc b/tensorflow/lite/micro/apollo3evb/micro_time.cc
new file mode 100644
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+++ b/tensorflow/lite/micro/apollo3evb/micro_time.cc
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+/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+// Reference implementation of timer functions.  Platforms are not required to
+// implement these timer methods, but they are required to enable profiling.
+
+// On platforms that have a POSIX stack or C library, it can be written using
+// methods from <sys/time.h> or clock() from <time.h>.
+
+// To add an equivalent function for your own platform, create your own
+// implementation file, and place it in a subfolder with named after the OS
+// you're targeting. For example, see the Cortex M bare metal version in
+// tensorflow/lite/micro/bluepill/micro_timer.cc or the mbed one on
+// tensorflow/lite/micro/mbed/micro_timer.cc.
+
+#include "tensorflow/lite/micro/micro_time.h"
+
+// These are headers from Ambiq's Apollo3 SDK.
+#include "am_bsp.h"         // NOLINT
+#include "am_mcu_apollo.h"  // NOLINT
+#include "am_util.h"        // NOLINT
+
+namespace tflite {
+namespace {
+
+// Select CTIMER 1 as benchmarking timer on Sparkfun Edge. This timer must not
+// be used elsewhere.
+constexpr int kTimerNum = 1;
+
+// Clock set to operate at 12MHz.
+constexpr int kClocksPerSecond = 12e6;
+
+}  // namespace
+
+int32_t ticks_per_second() { return kClocksPerSecond; }
+
+// Calling this method enables a timer that runs for eternity. The user is
+// responsible for avoiding trampling on this timer's config, otherwise timing
+// measurements may no longer be valid.
+int32_t GetCurrentTimeTicks() {
+  // TODO(b/150808076): Split out initialization, intialize in interpreter.
+  static bool is_initialized = false;
+  if (!is_initialized) {
+    am_hal_ctimer_config_t timer_config;
+    // Operate as a 32-bit timer.
+    timer_config.ui32Link = 1;
+    // Set timer A to continuous mode at 12MHz.
+    timer_config.ui32TimerAConfig =
+        AM_HAL_CTIMER_FN_CONTINUOUS | AM_HAL_CTIMER_HFRC_12MHZ;
+
+    am_hal_ctimer_stop(kTimerNum, AM_HAL_CTIMER_BOTH);
+    am_hal_ctimer_clear(kTimerNum, AM_HAL_CTIMER_BOTH);
+    am_hal_ctimer_config(kTimerNum, &timer_config);
+    am_hal_ctimer_start(kTimerNum, AM_HAL_CTIMER_TIMERA);
+    is_initialized = true;
+  }
+  return CTIMERn(kTimerNum)->TMR0;
+}
+
+}  // namespace tflite