diff --git a/kerastuner_tensorboard_logger/logger.py b/kerastuner_tensorboard_logger/logger.py
index efd54b0..21fd9d7 100644
--- a/kerastuner_tensorboard_logger/logger.py
+++ b/kerastuner_tensorboard_logger/logger.py
@@ -7,7 +7,7 @@
 
 
 def timedelta_to_hms(timedelta: timedelta) -> str:
-    """convert datetime.timedelta to string like '01h:15m:30s'"""
+    """(Deprecated) convert datetime.timedelta to string like '01h:15m:30s'"""
     tot_seconds = int(timedelta.total_seconds())
     hours = tot_seconds // 3600
     minutes = (tot_seconds % 3600) // 60
@@ -30,7 +30,7 @@ class TensorBoardLogger(Logger):
     def __init__(
         self,
         metrics: Union[str, List[str]] = ["acc"],
-        logdir: str = "logs/hparam_tuning",
+        logdir: str = "logs/",
         overwrite: bool = False,
     ):
         self.metrics = [metrics] if isinstance(metrics, str) else metrics
@@ -46,18 +46,16 @@ def register_tuner(self, tuner_state):
 
     def register_trial(self, trial_id: str, trial_state: Dict[str, Any]):
         """Informs the logger that a new Trial is starting."""
-        self.times[trial_id] = datetime.now()
+        pass
 
     def report_trial_state(self, trial_id: str, trial_state: Dict[str, Any]):
         """Gives the logger information about trial status."""
-        execution_time = timedelta_to_hms(datetime.now() - self.times.pop(trial_id))
-        name = f"{execution_time}-{trial_id}"
-        logdir = os.path.join(self.logdir, name)
+        logdir = os.path.join(self.logdir, trial_id, "hparams")
 
         with tf.summary.create_file_writer(logdir).as_default():
             hparams = self.parse_hparams(trial_state)
             hp_board.hparams(
-                hparams, trial_id=name
+                hparams, trial_id=trial_id
             )  # record the values used in this trial
 
             for target_metric, metric in self.parse_metrics(trial_state):
diff --git a/scripts/local_test.sh b/scripts/local_test.sh
index 709ca4d..c83bea0 100755
--- a/scripts/local_test.sh
+++ b/scripts/local_test.sh
@@ -3,4 +3,4 @@
 set -e
 
 pytest --disable-warnings tests/
-tensorboard --logdir tests/logs/hparams
\ No newline at end of file
+tensorboard --logdir tests/logs
\ No newline at end of file
diff --git a/tests/test_logger.py b/tests/test_logger.py
index fc18251..d7da718 100644
--- a/tests/test_logger.py
+++ b/tests/test_logger.py
@@ -12,6 +12,7 @@
 
 
 def test_timedelta_to_hms():
+    """(Deprecated)"""
     td = timedelta(minutes=10, hours=2, seconds=30, microseconds=111)
     out = timedelta_to_hms(td)
     assert out == "2h10m30s"
@@ -198,6 +199,35 @@ def test_initialize_manual():
     tuner.search(train_data, epochs=3, validation_data=test_data)
 
 
+def test_search_with_callbacks_manual():
+    """test logging with TensorBoardCallbacks
+    manual test is required. log files for tensorboard,
+    then, run tensorboard server as:
+
+    ```bash
+    tensorboard --logdir tests/logs/with-callbacks
+    ```
+
+    """
+    tuner = Hyperband(
+        build_model,
+        objective="val_acc",
+        max_epochs=3,
+        directory="tests/logs/with-callbacks/search",
+        project_name="initialize_manual",
+        overwrite=True,
+        logger=TensorBoardLogger(
+            metrics="val_acc",
+            logdir="tests/logs/with-callbacks",
+            overwrite=True,
+        ),
+    )
+    setup_tb(tuner)
+    train_data, test_data = make_dataset()
+    callbacks = [tf.keras.callbacks.TensorBoard(log_dir="tests/logs/with-callbacks")]
+    tuner.search(train_data, epochs=3, validation_data=test_data, callbacks=callbacks)
+
+
 def test_parse():
     trained_trial_state = {
         "trial_id": "bb0649bfdb92155d308f12dca83152e1",