diff --git a/queue.py b/queue.py
index c9433e4..c05d7a7 100644
--- a/queue.py
+++ b/queue.py
@@ -111,12 +111,16 @@ digit_addresses = [
     (3, 15), # 31
 ]
 
+def log(*args):
+    timestamp = datetime.now().strftime('[%y-%m-%d %H:%M:%S]')
+    print(timestamp, *args)
+
 def set_display(ser, message, interval, display_width, global_brightness):
     lines = [ line for line in message.splitlines() if line.strip() ]
     for i, line in enumerate(lines):
         line = line.center(display_width)[:display_width]
         line_mapped = [shuffle_segments(seg_map.get(c, seg_map['#'])) for c in line]
-        print(f'    [Line {i+1}/{len(lines)}] Sending control data.')
+        log(f'    [Line {i+1}/{len(lines)}] Sending control data.')
 
         digit_data = [0x00] * 16 * 4
         for (driver, address), data in zip(digit_addresses, line_mapped):
@@ -166,7 +170,7 @@ def cli(database, port, baudrate, message_interval, display_width, global_bright
                 idle_seconds = int(interval)
                 idle_index += 1
 
-                print(f'    [Idle {idle_index}/{len(idle_messages)}] {message}')
+                log(f'    [Idle {idle_index}/{len(idle_messages)}] {message}')
                 set_display(ser, message, 0, display_width, global_brightness)
 
             time.sleep(1)
@@ -174,7 +178,7 @@ def cli(database, port, baudrate, message_interval, display_width, global_bright
 
         queue_pressure = max(0, min((math.log10(max(1, count-3)) - 0.3) * message_interval*2/3, message_interval*1/3))
         interval = message_interval - queue_pressure
-        print(f'    Waiting interval of {message_interval:.1f} s with queue pressure {queue_pressure:.1f} from n={count} items for a total of {interval:.1f} s')
+        log(f'    Waiting interval of {message_interval:.1f} s with queue pressure {queue_pressure:.1f} from n={count} items for a total of {interval:.1f} s')
 
 
         rowid, message, timestamp, remote_ip, suppress_display = db.execute('''
@@ -193,11 +197,11 @@ def cli(database, port, baudrate, message_interval, display_width, global_bright
 
         else:
             if discard > 0:
-                print(f'Discarded {discard} messages.')
+                log(f'Discarded {discard} messages.')
             discard = 0
 
-            print(f'Queueing message by {remote_ip} received at {timestamp} ({delta//60:.0f}m {delta%60:.0f}s ago):')
-            print('   ', repr(message))
+            log(f'Queueing message by {remote_ip} received at {timestamp} ({delta//60:.0f}m {delta%60:.0f}s ago):')
+            log('   ', repr(message))
 
             idle_seconds = 0
             interval = max(5, interval/len(message.splitlines()))