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
@@ -134,6 +134,7 @@
     'ArcanistPasteWorkflow' => 'workflow/ArcanistPasteWorkflow.php',
     'ArcanistPatchWorkflow' => 'workflow/ArcanistPatchWorkflow.php',
     'ArcanistPhpcsLinter' => 'lint/linter/ArcanistPhpcsLinter.php',
+    'ArcanistPhrequentWorkflow' => 'workflow/ArcanistPhrequentWorkflow.php',
     'ArcanistPhutilLibraryLinter' => 'lint/linter/ArcanistPhutilLibraryLinter.php',
     'ArcanistPhutilTestCase' => 'unit/engine/phutil/ArcanistPhutilTestCase.php',
     'ArcanistPhutilTestCaseTestCase' => 'unit/engine/phutil/testcase/ArcanistPhutilTestCaseTestCase.php',
@@ -160,6 +161,8 @@
     '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',
@@ -167,6 +170,7 @@
     'ArcanistTestCase' => 'infrastructure/testing/ArcanistTestCase.php',
     'ArcanistTextLinter' => 'lint/linter/ArcanistTextLinter.php',
     'ArcanistTextLinterTestCase' => 'lint/linter/__tests__/ArcanistTextLinterTestCase.php',
+    'ArcanistTimeWorkflow' => 'workflow/ArcanistTimeWorkflow.php',
     'ArcanistTodoWorkflow' => 'workflow/ArcanistTodoWorkflow.php',
     'ArcanistUncommittedChangesException' => 'exception/usage/ArcanistUncommittedChangesException.php',
     'ArcanistUnitConsoleRenderer' => 'unit/renderer/ArcanistUnitConsoleRenderer.php',
@@ -308,6 +312,7 @@
     'ArcanistPasteWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistPatchWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistPhpcsLinter' => 'ArcanistExternalLinter',
+    'ArcanistPhrequentWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistPhutilLibraryLinter' => 'ArcanistLinter',
     'ArcanistPhutilTestCaseTestCase' => 'ArcanistPhutilTestCase',
     'ArcanistPhutilTestSkippedException' => 'Exception',
@@ -331,6 +336,8 @@
     'ArcanistSingleLintEngine' => 'ArcanistLintEngine',
     'ArcanistSpellingLinter' => 'ArcanistLinter',
     'ArcanistSpellingLinterTestCase' => 'ArcanistArcanistLinterTestCase',
+    'ArcanistStartWorkflow' => 'ArcanistPhrequentWorkflow',
+    'ArcanistStopWorkflow' => 'ArcanistPhrequentWorkflow',
     'ArcanistSubversionAPI' => 'ArcanistRepositoryAPI',
     'ArcanistSubversionHookAPI' => 'ArcanistHookAPI',
     'ArcanistSvnHookPreCommitWorkflow' => 'ArcanistBaseWorkflow',
@@ -338,6 +345,7 @@
     'ArcanistTestCase' => 'ArcanistPhutilTestCase',
     'ArcanistTextLinter' => 'ArcanistLinter',
     'ArcanistTextLinterTestCase' => 'ArcanistArcanistLinterTestCase',
+    'ArcanistTimeWorkflow' => 'ArcanistPhrequentWorkflow',
     'ArcanistTodoWorkflow' => 'ArcanistBaseWorkflow',
     'ArcanistUncommittedChangesException' => 'ArcanistUsageException',
     'ArcanistUnitConsoleRenderer' => 'ArcanistUnitRenderer',
diff --git a/src/workflow/ArcanistPhrequentWorkflow.php b/src/workflow/ArcanistPhrequentWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/workflow/ArcanistPhrequentWorkflow.php
@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * Base workflow for Phrequent workflows
+ */
+abstract class ArcanistPhrequentWorkflow extends ArcanistBaseWorkflow {
+
+  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';
+      }
+    }
+
+    $table = id(new PhutilConsoleTable())
+      ->addColumn('type', array('title' => 'Status'))
+      ->addColumn('time', array('title' => 'Tracked', 'align' => 'right'))
+      ->addColumn('name', array('title' => 'Name'))
+      ->setBorders(false);
+
+    $i = 0;
+    foreach ($results as $result) {
+      if ($result['ongoing']) {
+        if ($i === 0) {
+          $column_type = 'In Progress';
+        } else {
+          $column_type = 'Suspended';
+        }
+      } else {
+        $column_type = 'Stopped';
+      }
+
+      $table->addRow(array(
+        'type' => '('.$column_type.')',
+        'time' => phutil_format_relative_time($result['time']),
+        'name' => $phid_map[$result['phid']],
+      ));
+
+      $i++;
+    }
+
+    $table->draw();
+
+    return 0;
+  }
+
+}
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 +1,92 @@
+<?php
+
+/**
+ * Start time tracking on an object
+ */
+final class ArcanistStartWorkflow extends ArcanistPhrequentWorkflow {
+
+  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(
+      '*' => 'name',
+    );
+  }
+
+  public function run() {
+    $conduit = $this->getConduit();
+
+    $started_phids = array();
+    $short_name = $this->getArgument('name');
+    foreach ($short_name as $object_name) {
+      $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_phids[] = $conduit->callMethodSynchronous(
+        'phrequent.push',
+        array(
+          'objectPHID' => $object_phid
+        ));
+    }
+
+    $phid_query = $conduit->callMethodSynchronous(
+      'phid.query',
+      array(
+        'phids' => $started_phids,
+      ));
+
+    $name = '';
+    foreach ($phid_query as $ref) {
+      if ($name === '') {
+        $name = $ref['fullName'];
+      } else {
+        $name .= ', '.$ref['fullName'];
+      }
+    }
+
+    echo phutil_console_format(
+      "Started:  %s\n\n",
+      $name);
+
+    $this->printCurrentTracking(true);
+  }
+
+}
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 +1,132 @@
+<?php
+
+/**
+ * Stop time tracking on an object
+ */
+final class ArcanistStopWorkflow extends ArcanistPhrequentWorkflow {
+
+  public function getWorkflowName() {
+    return 'stop';
+  }
+
+  public function getCommandSynopses() {
+    return phutil_console_format(<<<EOTEXT
+      **stop** [--note __note__] [__objects__]
+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(
+      'note' => array(
+        'param' => 'note',
+        'help' =>
+          'A note to attach to the tracked time.',
+      ),
+      '*' => 'name',
+    );
+  }
+
+  public function run() {
+    $conduit = $this->getConduit();
+
+    $names = $this->getArgument('name');
+
+    $object_lookup = $conduit->callMethodSynchronous(
+      'phid.lookup',
+      array(
+        'names' => $names,
+      ));
+
+    foreach ($names as $object_name) {
+      if (!array_key_exists($object_name, $object_lookup)) {
+        throw new ArcanistUsageException(
+          "No such object '".$object_name."' found.");
+        return 1;
+      }
+    }
+
+    if (count($names) === 0) {
+      // Implicit stop; add an entry so the loop will call
+      // phrequent.pop with a null objectPHID.
+      $object_lookup[] = array('phid' => null);
+    }
+
+    $stopped_phids = array();
+    foreach ($object_lookup as $ref) {
+      $object_phid = $ref['phid'];
+
+      $stopped_phid = $conduit->callMethodSynchronous(
+        'phrequent.pop',
+        array(
+          'objectPHID' => $object_phid,
+          'note' => $this->getArgument('note'),
+        ));
+      if ($stopped_phid !== null) {
+        $stopped_phids[] = $stopped_phid;
+      }
+    }
+
+    if (count($stopped_phids) === 0) {
+      if (count($names) === 0) {
+        echo phutil_console_format(
+          "Not currently tracking time against any object\n");
+      } else {
+        $name = '';
+        foreach ($object_lookup as $ref) {
+          if ($name === '') {
+            $name = $ref['fullName'];
+          } else {
+            $name = ', '.$ref['fullName'];
+          }
+        }
+
+        echo phutil_console_format(
+          "Not currently tracking time against %s\n",
+          $name);
+      }
+      return 1;
+    }
+
+    $phid_query = $conduit->callMethodSynchronous(
+      'phid.query',
+      array(
+        'phids' => $stopped_phids,
+      ));
+
+    $name = '';
+    foreach ($phid_query as $ref) {
+      if ($name === '') {
+        $name = $ref['fullName'];
+      } else {
+        $name .= ', '.$ref['fullName'];
+      }
+    }
+
+    echo phutil_console_format(
+      "Stopped:  %s\n\n",
+      $name);
+
+    $this->printCurrentTracking(true);
+  }
+
+}
diff --git a/src/workflow/ArcanistTimeWorkflow.php b/src/workflow/ArcanistTimeWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/workflow/ArcanistTimeWorkflow.php
@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * Show time being tracked in Phrequent
+ */
+final class ArcanistTimeWorkflow extends ArcanistPhrequentWorkflow {
+
+  public function getWorkflowName() {
+    return 'time';
+  }
+
+  public function getCommandSynopses() {
+    return phutil_console_format(<<<EOTEXT
+      **time**
+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();
+  }
+
+}