diff --git a/src/booker.py b/src/booker.py
index 8fb07a8..ceb9cc1 100644
--- a/src/booker.py
+++ b/src/booker.py
@@ -192,8 +192,6 @@ class Booker:
 
         # Parse TARGET_RESERVATION_TIME to get the target hour and minute
         target_hour, target_minute = map(int, TARGET_RESERVATION_TIME.split(":"))
-        target_time = datetime.now(tz).replace(hour=target_hour, minute=target_minute, second=0, microsecond=0)
-        booking_window_end = target_time + timedelta(minutes=BOOKING_WINDOW_END_DELTA_MINUTES)
 
         # Initial login
         if not self.auth_handler.login():
@@ -206,15 +204,19 @@ class Booker:
                     current_time: datetime = datetime.now(tz)
                     logging.info(f"Current time: {current_time}")
 
+                    # Recalculate target time and end time for the current day
+                    today_target_time = current_time.replace(hour=target_hour, minute=target_minute, second=0, microsecond=0)
+                    booking_window_end = today_target_time + timedelta(minutes=BOOKING_WINDOW_END_DELTA_MINUTES)
+
                     # Only book sessions if current time is within the booking window
-                    if target_time <= current_time <= booking_window_end:
+                    if today_target_time <= current_time <= booking_window_end:
                         # Run booking cycle to check for preferred sessions and book
                         await self.booker(current_time)
                         # Wait for a short time before next check
                         time.sleep(60)
                     else:
                         # Display message when outside booking window
-                        # logging.info(f"Not booking now - current time {current_time} is outside the booking window ({target_time} to {booking_window_end})")
+                        # logging.info(f"Not booking now - current time {current_time} is outside the booking window ({today_target_time} to {booking_window_end})")
                         # Check again in 5 minutes if outside booking window
                         time.sleep(300)
                 except Exception as e: