diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -5,7 +5,6 @@
  * @generated
  * @phutil-library-version 2
  */
-
 phutil_register_library_map(array(
   '__library_version__' => 2,
   'class' =>
@@ -161,6 +160,8 @@
     'ArcanistSingleLintEngine' => 'lint/engine/ArcanistSingleLintEngine.php',
     'ArcanistSpellingLinter' => 'lint/linter/ArcanistSpellingLinter.php',
     'ArcanistSpellingLinterTestCase' => 'lint/linter/__tests__/ArcanistSpellingLinterTestCase.php',
+    'ArcanistStartWorkflow' => 'workflow/ArcanistStartWorkflow.php',
+    'ArcanistStopWorkflow' => 'workflow/ArcanistStopWorkflow.php',
     'ArcanistSubversionAPI' => 'repository/api/ArcanistSubversionAPI.php',
     'ArcanistSubversionHookAPI' => 'repository/hookapi/ArcanistSubversionHookAPI.php',
     'ArcanistSvnHookPreCommitWorkflow' => 'workflow/ArcanistSvnHookPreCommitWorkflow.php',
@@ -169,6 +170,7 @@
     'ArcanistTextLinter' => 'lint/linter/ArcanistTextLinter.php',
     'ArcanistTextLinterTestCase' => 'lint/linter/__tests__/ArcanistTextLinterTestCase.php',
     'ArcanistTodoWorkflow' => 'workflow/ArcanistTodoWorkflow.php',
+    'ArcanistTrackingWorkflow' => 'workflow/ArcanistTrackingWorkflow.php',
     'ArcanistUncommittedChangesException' => 'exception/usage/ArcanistUncommittedChangesException.php',
     'ArcanistUnitConsoleRenderer' => 'unit/renderer/ArcanistUnitConsoleRenderer.php',
     'ArcanistUnitRenderer' => 'unit/renderer/ArcanistUnitRenderer.php',
@@ -332,6 +334,8 @@
     'ArcanistSingleLintEngine' => 'ArcanistLintEngine',
     'ArcanistSpellingLinter' => 'ArcanistLinter',
     'ArcanistSpellingLinterTestCase' => 'ArcanistArcanistLinterTestCase',
+    'ArcanistStartWorkflow' => 'ArcanistTrackingWorkflow',
+    'ArcanistStopWorkflow' => 'ArcanistTrackingWorkflow',
     'ArcanistSubversionAPI' => 'ArcanistRepositoryAPI',
     'ArcanistSubversionHookAPI' => 'ArcanistHookAPI',
     'ArcanistSvnHookPreCommitWorkflow' => 'ArcanistBaseWorkflow',
@@ -340,6 +344,7 @@
     'ArcanistTextLinter' => 'ArcanistLinter',
     'ArcanistTextLinterTestCase' => 'ArcanistArcanistLinterTestCase',
     'ArcanistTodoWorkflow' => 'ArcanistBaseWorkflow',
+    'ArcanistTrackingWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistUncommittedChangesException' => 'ArcanistUsageException',
     'ArcanistUnitConsoleRenderer' => 'ArcanistUnitRenderer',
     'ArcanistUnitWorkflow' => 'ArcanistBaseWorkflow',
diff --git a/src/workflow/ArcanistStartWorkflow.php b/src/workflow/ArcanistStartWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/workflow/ArcanistStartWorkflow.php
@@ -0,0 +1,100 @@
+<?php
+
+/**
+ * Start time tracking on an object
+ */
+final class ArcanistStartWorkflow extends ArcanistTrackingWorkflow {
+
+  public function getWorkflowName() {
+    return 'start';
+  }
+
+  public function getCommandSynopses() {
+    return phutil_console_format(<<<EOTEXT
+      **start** __object__
+EOTEXT
+      );
+  }
+
+  public function getCommandHelp() {
+    return phutil_console_format(<<<EOTEXT
+Start tracking work in Phrequent.
+EOTEXT
+      );
+  }
+
+  public function requiresConduit() {
+    return true;
+  }
+
+  public function desiresWorkingCopy() {
+    return false;
+  }
+
+  public function requiresAuthentication() {
+    return true;
+  }
+
+  public function getArguments() {
+    return array(
+      'object' => array(
+        'param' => 'T1234',
+        'help' => 
+          "An object in Phabricator, such as T1234 or D5678.  You can ".
+          "use `arc start T1234` as short hand.",
+      ),
+      '*' => 'name',
+    );
+  }
+
+  public function run() {
+    $conduit = $this->getConduit();
+
+    $object_name = null;
+    $short_name = $this->getArgument('name');
+    if (count($short_name) > 0) {
+      $object_name = $short_name[0];
+    } else {
+      $object_name = $this->getArgument('object');
+    }
+
+    $object_lookup = $conduit->callMethodSynchronous(
+      'phid.lookup',
+      array(
+        'names' => array($object_name),
+      ));
+
+    if (!array_key_exists($object_name, $object_lookup)) {
+      echo "No such object '".$object_name."' found.\n";
+      return 1;
+    }
+
+    $object_phid = $object_lookup[$object_name]['phid'];
+
+    $started_phid = $conduit->callMethodSynchronous(
+      'phrequent.push',
+      array(
+        'objectPHID' => $object_phid
+      ));
+
+    $phid_query = $conduit->callMethodSynchronous(
+      'phid.query',
+      array(
+        'phids' => array($started_phid),
+      ));
+
+    $name = $phid_query[$started_phid]['fullName'];
+
+    echo phutil_console_format(
+      "Started:  %s\n\n",
+      $name);
+
+    // TODO This is pretty terrible... but it seems to be needed to
+    // calculate the current work being tracked?
+    sleep(1);
+
+    $this->printCurrentTracking();
+  }
+
+}
+
diff --git a/src/workflow/ArcanistStopWorkflow.php b/src/workflow/ArcanistStopWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/workflow/ArcanistStopWorkflow.php
@@ -0,0 +1,121 @@
+<?php
+
+/**
+ * Stop time tracking on an object
+ */
+final class ArcanistStopWorkflow extends ArcanistTrackingWorkflow {
+
+  public function getWorkflowName() {
+    return 'stop';
+  }
+
+  public function getCommandSynopses() {
+    return phutil_console_format(<<<EOTEXT
+      **stop** [--note __note__] [__object__]
+EOTEXT
+      );
+  }
+
+  public function getCommandHelp() {
+    return phutil_console_format(<<<EOTEXT
+Start tracking work in Phrequent.
+EOTEXT
+      );
+  }
+
+  public function requiresConduit() {
+    return true;
+  }
+
+  public function desiresWorkingCopy() {
+    return false;
+  }
+
+  public function requiresAuthentication() {
+    return true;
+  }
+
+  public function getArguments() {
+    return array(
+      'object' => array(
+        'param' => 'T1234',
+        'help' => 
+          "The object to stop tracking in Phabricator, such as T1234 or ".
+          "D5678.  You can omit this to stop tracking the current object.  ".
+          "Use `arc stop T1234` or `arc stop` as short hand.",
+      ),
+      'note' => array(
+        'param' => 'note',
+        'help' => 
+          "A note to attach to the tracked time.",
+      ),
+      '*' => 'name',
+    );
+  }
+
+  public function run() {
+    $conduit = $this->getConduit();
+
+    $object_name = null;
+    $short_name = $this->getArgument('name');
+    if (count($short_name) > 0) {
+      $object_name = $short_name[0];
+    } else {
+      $object_name = $this->getArgument('object');
+    }
+
+    $object_phid = null;
+    if ($object_name !== null) {
+      $object_lookup = $conduit->callMethodSynchronous(
+        'phid.lookup',
+        array(
+          'names' => array($object_name),
+        ));
+
+      if (!array_key_exists($object_name, $object_lookup)) {
+        echo "No such object '".$object_name."' found.\n";
+        return 1;
+      }
+
+      $object_phid = $object_lookup[$object_name]['phid'];
+    }
+
+    $stopped_phid = $conduit->callMethodSynchronous(
+      'phrequent.pop',
+      array(
+        'objectPHID' => $object_phid,
+        'note' => $this->getArgument('note'),
+      ));
+
+    if ($stopped_phid === null) {
+      if ($object_name === null) {
+        echo phutil_console_format(
+          "Not currently tracking time against any object\n");
+      } else {
+        echo phutil_console_format(
+          "Not currently tracking time against <fg:blue>**%s**</fg>\n",
+          $object_name);
+      }
+      return 1;
+    }
+
+    $phid_query = $conduit->callMethodSynchronous(
+      'phid.query',
+      array(
+        'phids' => array($stopped_phid),
+      ));
+
+    $name = $phid_query[$stopped_phid]['fullName'];
+
+    echo phutil_console_format(
+      "Stopped:  %s\n\n",
+      $name);
+
+    // TODO This is pretty terrible... but it seems to be needed to
+    // calculate the current work being tracked?
+    sleep(1);
+
+    $this->printCurrentTracking();
+  }
+
+}
diff --git a/src/workflow/ArcanistTrackingWorkflow.php b/src/workflow/ArcanistTrackingWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/workflow/ArcanistTrackingWorkflow.php
@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * Show time being tracked in Phrequent
+ *
+ * @concrete-extensible
+ */
+class ArcanistTrackingWorkflow extends ArcanistBaseWorkflow {
+
+  public function getWorkflowName() {
+    return 'tracking';
+  }
+
+  public function getCommandSynopses() {
+    return phutil_console_format(<<<EOTEXT
+      **tracking**
+EOTEXT
+      );
+  }
+
+  public function getCommandHelp() {
+    return phutil_console_format(<<<EOTEXT
+Show what you're currently tracking in Phrequent.
+EOTEXT
+      );
+  }
+
+  public function requiresConduit() {
+    return true;
+  }
+
+  public function desiresWorkingCopy() {
+    return false;
+  }
+
+  public function requiresAuthentication() {
+    return true;
+  }
+
+  public function getArguments() {
+    return array(
+    );
+  }
+
+  public function run() {
+    $this->printCurrentTracking();
+  }
+
+  protected function printCurrentTracking() {
+    $conduit = $this->getConduit();
+
+    $results = $conduit->callMethodSynchronous(
+      'phrequent.tracking',
+      array());
+    $results = $results['data'];
+
+    if (count($results) === 0) {
+      echo phutil_console_format(
+        "Not currently tracking time against any object\n");
+
+      return 0;
+    }
+
+    $phids_to_lookup = array();
+    foreach ($results as $result) {
+      $phids_to_lookup[] = $result['phid'];
+    }
+
+    $phid_query = $conduit->callMethodSynchronous(
+      'phid.query',
+      array(
+        'phids' => $phids_to_lookup,
+      ));
+
+    $phid_map = array();
+    foreach ($phids_to_lookup as $lookup) {
+      if (array_key_exists($lookup, $phid_query)) {
+        $phid_map[$lookup] = $phid_query[$lookup]['fullName'];
+      } else {
+        $phid_map[$lookup] = 'Unknown Object';
+      }
+    }
+
+    foreach ($results as $result) {
+      $column_type = '';
+      $column_name = '';
+      $column_time = '';
+
+      switch ($result['type']) {
+        case 'active':
+          $column_type = 'In Progress';
+          break;
+        case 'suspended':
+          $column_type = 'Suspended';
+          break;
+        case 'inactive';
+          $column_type = 'Stopped';
+          break;
+      }
+
+      $column_type = '('.$column_type.')';
+      $column_type = str_pad($column_type, 14);
+      $column_time = phutil_format_relative_time($result['time']);
+      $column_time = str_pad($column_time, 7, " ", STR_PAD_LEFT);
+      $column_name = $phid_map[$result['phid']];
+
+      echo $column_type.$column_time."  ".$column_name."\n";
+    }
+
+    return 0;
+  }
+
+}