diff --git a/timeturner.py b/timeturner.py
index 07ef717..073e199 100644
--- a/timeturner.py
+++ b/timeturner.py
@@ -7,11 +7,13 @@ import subprocess
 import os
 import threading
 import queue
+import json
 from collections import deque
 
 SERIAL_PORT = None
 BAUD_RATE = 115200
 FRAME_RATE = 25.0
+CONFIG_PATH = "config.json"
 
 sync_pending = False
 ltc_data_queue = queue.Queue()
@@ -20,6 +22,16 @@ offset_history = deque(maxlen=20)
 
 lock_total = 0
 free_total = 0
+hardware_offset_ms = 0
+
+def load_config():
+    global hardware_offset_ms
+    try:
+        with open(CONFIG_PATH, "r") as f:
+            config = json.load(f)
+            hardware_offset_ms = int(config.get("hardware_offset_ms", 0))
+    except Exception:
+        hardware_offset_ms = 0
 
 def find_teensy_serial():
     for dev in os.listdir('/dev'):
@@ -66,6 +78,8 @@ def run_curses(stdscr):
     stdscr.nodelay(True)
     stdscr.timeout(50)
 
+    load_config()
+
     SERIAL_PORT = find_teensy_serial()
     if not SERIAL_PORT:
         stdscr.addstr(0, 0, "❌ No serial device found.")
@@ -78,19 +92,16 @@ def run_curses(stdscr):
 
     while True:
         try:
-            # Pull latest from queue
             while not ltc_data_queue.empty():
                 parsed, arrival_time = ltc_data_queue.get_nowait()
                 latest_ltc = (parsed, arrival_time)
 
-                # Update lock ratio counters
                 if parsed["status"] == "LOCK":
                     lock_total += 1
                 else:
                     free_total += 1
 
-                # Record sync offset
-                offset_ms = (get_system_time() - arrival_time).total_seconds() * 1000
+                offset_ms = (get_system_time() - arrival_time).total_seconds() * 1000 - hardware_offset_ms
                 offset_frames = offset_ms / (1000 / parsed["frame_rate"])
                 offset_history.append((offset_ms, offset_frames))
 
@@ -98,9 +109,8 @@ def run_curses(stdscr):
                     do_sync(stdscr, parsed, arrival_time)
                     sync_pending = False
 
-            # Draw UI
             stdscr.erase()
-            stdscr.addstr(0, 2, "NTP Timeturner v1.0")
+            stdscr.addstr(0, 2, "NTP Timeturner v1.1")
             stdscr.addstr(1, 2, f"Using Serial Port: {SERIAL_PORT}")
 
             if latest_ltc:
@@ -116,7 +126,6 @@ def run_curses(stdscr):
                     avg_ms = sum(x[0] for x in offset_history) / len(offset_history)
                     avg_frames = sum(x[1] for x in offset_history) / len(offset_history)
 
-                    # Optional colour coding
                     if abs(avg_ms) < 10:
                         color = curses.color_pair(2)
                     elif abs(avg_ms) < 40:
@@ -162,7 +171,7 @@ def do_sync(stdscr, parsed, arrival_time):
             hour=parsed["hours"],
             minute=parsed["minutes"],
             second=parsed["seconds"],
-            microsecond=ms * 1000
+            microsecond=(ms + hardware_offset_ms) * 1000
         )
         timestamp = sync_time.strftime("%H:%M:%S.%f")[:-3]
         subprocess.run(["sudo", "date", "-s", timestamp], check=True)
@@ -171,10 +180,9 @@ def do_sync(stdscr, parsed, arrival_time):
         stdscr.addstr(13, 2, f"❌ Sync failed: {e}")
 
 if __name__ == "__main__":
-    # Optional: enable basic color scheme
     curses.initscr()
     curses.start_color()
-    curses.init_pair(1, curses.COLOR_RED, curses.COLOR_BLACK)    # bad
-    curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK)  # perfect
-    curses.init_pair(3, curses.COLOR_YELLOW, curses.COLOR_BLACK) # ok
+    curses.init_pair(1, curses.COLOR_RED, curses.COLOR_BLACK)
+    curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK)
+    curses.init_pair(3, curses.COLOR_YELLOW, curses.COLOR_BLACK)
     curses.wrapper(run_curses)