diff --git a/src/qibolab/instruments/bluefors.py b/src/qibolab/instruments/bluefors.py
index 9ce740cc9..8fa1bd04c 100644
--- a/src/qibolab/instruments/bluefors.py
+++ b/src/qibolab/instruments/bluefors.py
@@ -1,13 +1,12 @@
 import json
 import re
 import socket
+from datetime import datetime
 
 from qibo.config import log
 
 from qibolab.instruments.abstract import Instrument
 
-# from datetime import datetime
-
 
 class TemperatureController(Instrument):
     """Bluefors temperature controller."""
@@ -61,6 +60,8 @@ def convert_to_json(message: str) -> dict[str, dict[str, float]]:
         message = re.sub("'", '"', message)
         message = ",".join(message.split("\n"))
         dictionary_message = json.loads("{" + message + "}")
+        for flange_values in dictionary_message.values():
+            flange_values["time"] = datetime.fromtimestamp(flange_values["timestamp"])
         return dictionary_message
 
     def get_data(self) -> dict[str, dict[str, float]]: