diff --git a/climanet/utils.py b/climanet/utils.py
index c60bc5b..3501f48 100644
--- a/climanet/utils.py
+++ b/climanet/utils.py
@@ -4,6 +4,7 @@
 import numpy as np
 import xarray as xr
 import torch
+import time
 
 from torch.utils.tensorboard import SummaryWriter
 
@@ -222,7 +223,8 @@ def set_seed(seed: int = 42):
 def setup_logging(log_dir: str) -> SummaryWriter:
     """Set up TensorBoard logging directory and writer."""
     Path(log_dir).mkdir(parents=True, exist_ok=True)
-    return SummaryWriter(log_dir)
+    timestamp_utc = time.strftime("%Y%m%dT%H%M%S", time.gmtime())
+    return SummaryWriter(log_dir, filename_suffix=f'_UTC{timestamp_utc}')
 
 
 def compute_masked_loss(
diff --git a/pyproject.toml b/pyproject.toml
index 9261094..1c4aae6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ dependencies = [
     "matplotlib>=3.10.8",
     "netcdf4>=1.7.4",
     "scipy>=1.17.1",
+    "tbparse>=0.0.9",
     "tensorboard",
     "torch>=2.10.0",
     "xarray>=2025.12.0",
diff --git a/tests/test_utils.py b/tests/test_utils.py
index f4f5361..66bcb93 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,2 +1,19 @@
-def test_dummy():
-    assert True
+from climanet.utils import setup_logging
+from tbparse import SummaryReader
+
+
+def test_setup_logging(tmp_path):
+    writer = setup_logging(tmp_path)
+    log_text = "This is a test log entry."
+    writer.add_scalar("Test Scalar", 42)
+    writer.add_text("Test Text", log_text)
+    writer.close()
+
+    # Test that there is one event file
+    # The file should have "UTC" keyword in timestamp suffix
+    assert len(list(tmp_path.glob("events*UTC*"))) == 1
+
+    # Load the events file with SummaryReader
+    reader = SummaryReader(tmp_path)
+    assert reader.text["value"].iloc[0] == log_text  # check text
+    assert reader.scalars["value"].iloc[0] == 42  # check scalar