diff --git a/selfdrive/debug/car/fw_versions.py b/selfdrive/debug/car/fw_versions.py
index 03d066cdcb..6ae10d2fb2 100755
--- a/selfdrive/debug/car/fw_versions.py
+++ b/selfdrive/debug/car/fw_versions.py
@@ -47,15 +47,15 @@ if __name__ == "__main__":
 
   num_pandas = len(messaging.recv_one_retry(pandaStates_sock).pandaStates)
 
-  t = time.time()
+  t = time.monotonic()
   print("Getting vin...")
   set_obd_multiplexing(True)
   vin_rx_addr, vin_rx_bus, vin = get_vin(*can_callbacks, (0, 1))
   print(f'RX: {hex(vin_rx_addr)}, BUS: {vin_rx_bus}, VIN: {vin}')
-  print(f"Getting VIN took {time.time() - t:.3f} s")
+  print(f"Getting VIN took {time.monotonic() - t:.3f} s")
   print()
 
-  t = time.time()
+  t = time.monotonic()
   fw_vers = get_fw_versions(*can_callbacks, set_obd_multiplexing, query_brand=args.brand, extra=extra, num_pandas=num_pandas, progress=True)
   _, candidates = match_fw_to_car(fw_vers, vin)
 
@@ -71,4 +71,4 @@ if __name__ == "__main__":
 
   print()
   print("Possible matches:", candidates)
-  print(f"Getting fw took {time.time() - t:.3f} s")
+  print(f"Getting fw took {time.monotonic() - t:.3f} s")
diff --git a/selfdrive/ui/layouts/home.py b/selfdrive/ui/layouts/home.py
index 8030d36778..ceff940b79 100644
--- a/selfdrive/ui/layouts/home.py
+++ b/selfdrive/ui/layouts/home.py
@@ -67,7 +67,7 @@ class HomeLayout(Widget):
     self.current_state = state
 
   def _render(self, rect: rl.Rectangle):
-    current_time = time.time()
+    current_time = time.monotonic()
     if current_time - self.last_refresh >= REFRESH_INTERVAL:
       self._refresh()
       self.last_refresh = current_time
diff --git a/selfdrive/ui/onroad/exp_button.py b/selfdrive/ui/onroad/exp_button.py
index c5fa1fff14..e6748e4e09 100644
--- a/selfdrive/ui/onroad/exp_button.py
+++ b/selfdrive/ui/onroad/exp_button.py
@@ -41,7 +41,7 @@ class ExpButton(Widget):
 
         # Hold new state temporarily
         self._held_mode = new_mode
-        self._hold_end_time = time.time() + self._hold_duration
+        self._hold_end_time = time.monotonic() + self._hold_duration
       return True
     return False
 
@@ -58,7 +58,7 @@ class ExpButton(Widget):
     rl.draw_texture(texture, center_x - texture.width // 2, center_y - texture.height // 2, self._white_color)
 
   def _held_or_actual_mode(self):
-    now = time.time()
+    now = time.monotonic()
     if self._hold_end_time and now < self._hold_end_time:
       return self._held_mode
 
diff --git a/selfdrive/ui/widgets/pairing_dialog.py b/selfdrive/ui/widgets/pairing_dialog.py
index 2cb1499499..c48b2c65de 100644
--- a/selfdrive/ui/widgets/pairing_dialog.py
+++ b/selfdrive/ui/widgets/pairing_dialog.py
@@ -55,7 +55,7 @@ class PairingDialog:
       self.qr_texture = None
 
   def _check_qr_refresh(self) -> None:
-    current_time = time.time()
+    current_time = time.monotonic()
     if current_time - self.last_qr_generation >= self.QR_REFRESH_INTERVAL:
       self._generate_qr_code()
       self.last_qr_generation = current_time