diff --git a/README.md b/README.md
index 4f1bac64..1080c52a 100644
--- a/README.md
+++ b/README.md
@@ -227,8 +227,24 @@ Provide a switch in `entity_id`, a list of `lights`, or both.
 | `adapt_color`            | Whether to adapt the color on supporting lights. 🌈                                   | ❌         | bool                 |
 | `prefer_rgb_color`       | Whether to prefer RGB color adjustment over light color temperature when possible. 🌈 | ❌         | bool                 |
 | `turn_on_lights`         | Whether to turn on lights that are currently off. 🔆                                  | ❌         | bool                 |
+| `time`                   | Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️        | ❌         | time (HH:MM:SS)      |
 
 <!-- OUTPUT:END -->
+
+With `time`, the lights get the values Adaptive Lighting would use at that time today, for example to dim a room to its evening settings early.
+The adapted attributes are then marked as manually controlled, exactly as if you had changed them yourself: the regular adaptation leaves them alone until manual control is reset (see `autoreset_control_seconds` and `adaptive_lighting.set_manual_control`), and an `adaptive_lighting.manual_control` event is fired.
+When sleep mode is on, the sleep settings are applied instead, whatever the time.
+
+```yaml
+action: adaptive_lighting.apply
+data:
+  entity_id: switch.adaptive_lighting_living_room
+  lights:
+    - light.sofa
+    - light.floor_lamp
+  time: "22:00:00"
+```
+
 #### `adaptive_lighting.set_manual_control`
 
 `adaptive_lighting.set_manual_control` can mark (or unmark) whether a light is "manually controlled", meaning that when a light has `manual_control`, the light is not adapted.
diff --git a/custom_components/adaptive_lighting/_docs_helpers.py b/custom_components/adaptive_lighting/_docs_helpers.py
index c90d0c87..bf966c46 100644
--- a/custom_components/adaptive_lighting/_docs_helpers.py
+++ b/custom_components/adaptive_lighting/_docs_helpers.py
@@ -44,6 +44,8 @@ def _type_to_str(type_: Any) -> str:  # noqa: PLR0911
         return f"`{type_.__name__}`"
     if type_ == cv.boolean:
         return "bool"
+    if type_ == cv.time:
+        return "time (HH:MM:SS)"
     if isinstance(type_, vol.All):
         return _format_voluptuous_instance(type_)
     if isinstance(type_, vol.Any):
diff --git a/custom_components/adaptive_lighting/color_and_brightness.py b/custom_components/adaptive_lighting/color_and_brightness.py
index 4645f994..af93fd19 100644
--- a/custom_components/adaptive_lighting/color_and_brightness.py
+++ b/custom_components/adaptive_lighting/color_and_brightness.py
@@ -464,12 +464,17 @@ class SunLightSettings:
         self,
         is_sleep: bool,
         transition: float | None,
+        dt: datetime.datetime | None = None,
     ) -> dict[str, float | int | tuple[float, float] | tuple[float, float, float]]:
         """Get all light settings.
 
+        Uses the current time plus ``transition`` unless ``dt`` is given, in which
+        case the settings are calculated as if it were ``dt``.
+
         Calculating all values takes <0.5ms.
         """
-        dt = utcnow() + timedelta(seconds=transition or 0)
+        if dt is None:
+            dt = utcnow() + timedelta(seconds=transition or 0)
         return self.brightness_and_color(dt, is_sleep)
 
 
diff --git a/custom_components/adaptive_lighting/const.py b/custom_components/adaptive_lighting/const.py
index afead25c..16fadba0 100644
--- a/custom_components/adaptive_lighting/const.py
+++ b/custom_components/adaptive_lighting/const.py
@@ -316,6 +316,10 @@ DOCS[CONF_MANUAL_CONTROL] = "Whether to manually control the lights. 🔒"
 SERVICE_APPLY = "apply"
 CONF_TURN_ON_LIGHTS = "turn_on_lights"
 DOCS[CONF_TURN_ON_LIGHTS] = "Whether to turn on lights that are currently off. 🔆"
+CONF_APPLY_TIME = "time"
+DOCS[CONF_APPLY_TIME] = (
+    "Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️"
+)
 SERVICE_CHANGE_SWITCH_SETTINGS = "change_switch_settings"
 CONF_USE_DEFAULTS = "use_defaults"
 DOCS[CONF_USE_DEFAULTS] = (
@@ -521,6 +525,7 @@ def apply_service_schema() -> vol.Schema:
             vol.Optional(ATTR_ADAPT_COLOR, default=True): cv.boolean,
             vol.Optional(CONF_PREFER_RGB_COLOR, default=False): cv.boolean,
             vol.Optional(CONF_TURN_ON_LIGHTS, default=False): cv.boolean,
+            vol.Optional(CONF_APPLY_TIME): cv.time,
         },
     )
 
diff --git a/custom_components/adaptive_lighting/services.yaml b/custom_components/adaptive_lighting/services.yaml
index c95e31b5..8bc8e462 100644
--- a/custom_components/adaptive_lighting/services.yaml
+++ b/custom_components/adaptive_lighting/services.yaml
@@ -40,6 +40,11 @@ apply:
       example: false
       selector:
         boolean: null
+    time:
+      description: Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️
+      example: '22:00:00'
+      selector:
+        time: null
 set_manual_control:
   description: Mark whether a light is 'manually controlled'.
   fields:
diff --git a/custom_components/adaptive_lighting/strings.json b/custom_components/adaptive_lighting/strings.json
index 9e22ff57..24ad9140 100644
--- a/custom_components/adaptive_lighting/strings.json
+++ b/custom_components/adaptive_lighting/strings.json
@@ -143,6 +143,10 @@
         "turn_on_lights": {
           "description": "Whether to turn on lights that are currently off. 🔆",
           "name": "turn_on_lights"
+        },
+        "time": {
+          "description": "Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️",
+          "name": "time"
         }
       }
     },
diff --git a/custom_components/adaptive_lighting/switch.py b/custom_components/adaptive_lighting/switch.py
index db1c2d0b..67ad936e 100644
--- a/custom_components/adaptive_lighting/switch.py
+++ b/custom_components/adaptive_lighting/switch.py
@@ -96,6 +96,7 @@ from .const import (
     CONF_ADAPT_DELAY,
     CONF_ADAPT_ONLY_ON_BARE_TURN_ON,
     CONF_ADAPT_UNTIL_SLEEP,
+    CONF_APPLY_TIME,
     CONF_AUTORESET_CONTROL,
     CONF_BRIGHTNESS_MODE,
     CONF_BRIGHTNESS_MODE_TIME_DARK,
@@ -422,9 +423,23 @@ async def handle_apply_service(hass: HomeAssistant, service_call: ServiceCall) -
     )
     switches = _switches_from_service_call(hass, service_call)
     lights = data[CONF_LIGHTS]
+    apply_time: datetime.time | None = data.get(CONF_APPLY_TIME)
+    # Applying the settings of another time of day only sticks if the regular
+    # adaptation leaves the light alone, so treat it like a manual change.
+    manual_attributes = LightControlAttributes.NONE
+    if apply_time is not None:
+        if data[ATTR_ADAPT_BRIGHTNESS]:
+            manual_attributes |= LightControlAttributes.BRIGHTNESS
+        if data[ATTR_ADAPT_COLOR]:
+            manual_attributes |= LightControlAttributes.COLOR
     for switch in switches:
         all_lights = switch._resolve_lights(lights or None)
         switch.manager.lights.update(all_lights)
+        at_time = None
+        if apply_time is not None:
+            tz = switch._sun_light_settings.timezone  # pylint: disable=protected-access
+            today = dt_util.now(tz).date()
+            at_time = datetime.datetime.combine(today, apply_time, tzinfo=tz)
         for light in all_lights:
             if data[CONF_TURN_ON_LIGHTS] or is_on(hass, light):
                 context = switch.create_context(
@@ -434,6 +449,13 @@ async def handle_apply_service(hass: HomeAssistant, service_call: ServiceCall) -
                 transition = data.get(CONF_TRANSITION)
                 if transition is None:
                     transition = switch.initial_transition
+                if manual_attributes:
+                    # Mark before adapting, so a regular adaptation cannot slip in
+                    # between and overwrite the values with those of the current time.
+                    switch.manager.add_manual_control_attributes(
+                        light,
+                        manual_attributes,
+                    )
                 await switch._adapt_light(  # pylint: disable=protected-access
                     light,
                     context=context,
@@ -442,7 +464,18 @@ async def handle_apply_service(hass: HomeAssistant, service_call: ServiceCall) -
                     adapt_color=data[ATTR_ADAPT_COLOR],
                     prefer_rgb_color=data[CONF_PREFER_RGB_COLOR],
                     force=True,
+                    at_time=at_time,
                 )
+                if manual_attributes:
+                    # Use the applied state as the manual-control baseline, like
+                    # the state that results from a manual change.
+                    if (state := hass.states.get(light)) is not None:
+                        switch.manager.update_manual_control_state(
+                            light,
+                            state,
+                            manual_attributes,
+                        )
+                    switch.fire_manual_control_event(light, context)
 
 
 async def handle_set_manual_control_service(
@@ -1315,8 +1348,13 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
         force: bool = False,
         context: Context | None = None,
         already_applied: LightControlAttributes = LightControlAttributes.NONE,
+        at_time: datetime.datetime | None = None,
     ) -> AdaptationData | None:
-        """Prepare `AdaptationData` for adapting a light."""
+        """Prepare `AdaptationData` for adapting a light.
+
+        If `at_time` is given, the light is adapted as if it were that time. The
+        switch's own settings (and its state attributes) are left untouched.
+        """
         adaptation_attributes = self.manager.get_adaption_control_attributes(
             self,
             light,
@@ -1342,10 +1380,10 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
             )
             return None
 
-        # The switch might be off and not have _settings set.
-        self._settings = self._sun_light_settings.get_settings(
+        settings = self._sun_light_settings.get_settings(
             self.sleep_mode_switch.is_on,
             transition,
+            at_time,
         )
 
         # Build service data.
@@ -1358,7 +1396,7 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
             service_data[ATTR_TRANSITION] = transition
 
         if "brightness" in features and adapt_brightness:
-            brightness = round(255 * self._settings["brightness_pct"] / 100)
+            brightness = round(255 * settings["brightness_pct"] / 100)
             service_data[ATTR_BRIGHTNESS] = brightness
 
         sleep_rgb = (
@@ -1370,7 +1408,7 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
             and adapt_color
             and not (prefer_rgb_color and "color" in features)
             and not (sleep_rgb and "color" in features)
-            and not (self._settings["force_rgb_color"] and "color" in features)
+            and not (settings["force_rgb_color"] and "color" in features)
         ):
             _LOGGER.debug("%s: Setting color_temp of light %s", self._name, light)
             state = self.hass.states.get(light)
@@ -1378,12 +1416,12 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
             attributes = state.attributes
             min_kelvin = attributes["min_color_temp_kelvin"]
             max_kelvin = attributes["max_color_temp_kelvin"]
-            color_temp_kelvin = self._settings["color_temp_kelvin"]
+            color_temp_kelvin = settings["color_temp_kelvin"]
             color_temp_kelvin = clamp(color_temp_kelvin, min_kelvin, max_kelvin)
             service_data[ATTR_COLOR_TEMP_KELVIN] = color_temp_kelvin
         elif "color" in features and adapt_color:
             _LOGGER.debug("%s: Setting rgb_color of light %s", self._name, light)
-            service_data[ATTR_RGB_COLOR] = self._settings["rgb_color"]
+            service_data[ATTR_RGB_COLOR] = settings["rgb_color"]
 
         required_attrs = [ATTR_RGB_COLOR, ATTR_COLOR_TEMP_KELVIN, ATTR_BRIGHTNESS]
         if not any(attr in service_data for attr in required_attrs):
@@ -1420,6 +1458,7 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
         adapt_color: bool | None = None,
         prefer_rgb_color: bool | None = None,
         force: bool = False,
+        at_time: datetime.datetime | None = None,
     ) -> None:
         if (lock := self.manager.turn_off_locks.get(light)) and lock.locked():
             _LOGGER.debug("%s: '%s' is locked", self._name, light)
@@ -1433,6 +1472,7 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
             prefer_rgb_color,
             force,
             context,
+            at_time=at_time,
         )
         if data is None:
             return  # nothing to adapt
diff --git a/custom_components/adaptive_lighting/translations/en.json b/custom_components/adaptive_lighting/translations/en.json
index cc589156..3dab95a1 100644
--- a/custom_components/adaptive_lighting/translations/en.json
+++ b/custom_components/adaptive_lighting/translations/en.json
@@ -144,6 +144,10 @@
         "turn_on_lights": {
           "description": "Whether to turn on lights that are currently off. 🔆",
           "name": "turn_on_lights"
+        },
+        "time": {
+          "description": "Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️",
+          "name": "time"
         }
       }
     },
diff --git a/docs/services.md b/docs/services.md
index 6258017a..19d68997 100644
--- a/docs/services.md
+++ b/docs/services.md
@@ -28,6 +28,7 @@ Provide a switch in `entity_id`, a list of `lights`, or both.
 | `adapt_color`            | Whether to adapt the color on supporting lights. 🌈                                   | ❌         | bool                 |
 | `prefer_rgb_color`       | Whether to prefer RGB color adjustment over light color temperature when possible. 🌈 | ❌         | bool                 |
 | `turn_on_lights`         | Whether to turn on lights that are currently off. 🔆                                  | ❌         | bool                 |
+| `time`                   | Manually apply the settings for this time of day (HH:MM:SS) instead of now. 🕰️        | ❌         | time (HH:MM:SS)      |
 
 <!-- OUTPUT:END -->
 
@@ -54,6 +55,19 @@ data:
   adapt_color: true
 ```
 
+```yaml
+# Set the lights to this evening's 22:00 settings and hold them there
+service: adaptive_lighting.apply
+data:
+  entity_id: switch.adaptive_lighting_living_room
+  lights:
+    - light.sofa
+    - light.floor_lamp
+  time: "22:00:00"
+```
+
+With `time`, the lights get the values Adaptive Lighting would use at that time today. The adapted attributes are then marked as manually controlled, exactly as if you had changed them yourself: the regular adaptation leaves them alone until manual control is reset (for example by `autoreset_control_seconds` or `adaptive_lighting.set_manual_control`), and an `adaptive_lighting.manual_control` event is fired. When sleep mode is on, the sleep settings are applied instead, whatever the time.
+
 ---
 
 ## adaptive_lighting.set_manual_control
diff --git a/tests/test_switch.py b/tests/test_switch.py
index a3f5b689..8aadef05 100644
--- a/tests/test_switch.py
+++ b/tests/test_switch.py
@@ -33,6 +33,7 @@ from homeassistant.components.adaptive_lighting.const import (
     CONF_ADAPT_DELAY,
     CONF_ADAPT_ONLY_ON_BARE_TURN_ON,
     CONF_ADAPT_UNTIL_SLEEP,
+    CONF_APPLY_TIME,
     CONF_AUTORESET_CONTROL,
     CONF_BRIGHTNESS_MODE,
     CONF_BRIGHTNESS_MODE_TIME_DARK,
@@ -2186,6 +2187,169 @@ async def test_apply_service_uses_each_switch_transition(hass):
         assert adapt_2.await_args.kwargs["transition"] == 0
 
 
+async def test_apply_service_at_time(hass):
+    """Apply with 'time' adapts as if it were that time and marks manual control."""
+    switch, _ = await setup_lights_and_switch(hass, {CONF_MIN_BRIGHTNESS: 10})
+    noon = SUNRISE.replace(hour=12, tzinfo=dt_util.DEFAULT_TIME_ZONE).astimezone(
+        dt_util.UTC,
+    )
+    events = []
+    hass.bus.async_listen(f"{DOMAIN}.manual_control", events.append)
+
+    def light_attributes():
+        return hass.states.get(ENTITY_LIGHT_1).attributes
+
+    async def interval_update(**kwargs):
+        await switch._update_attrs_and_maybe_adapt_lights(
+            context=switch.create_context("interval"),
+            transition=0,
+            **kwargs,
+        )
+        await hass.async_block_till_done()
+
+    with patch(
+        "homeassistant.components.adaptive_lighting.color_and_brightness.utcnow",
+        return_value=noon,
+    ):
+        await interval_update(force=True)
+        assert light_attributes()[ATTR_BRIGHTNESS] == 255
+        noon_color_temp = light_attributes()[ATTR_COLOR_TEMP_KELVIN]
+        settings = deepcopy(switch._settings)
+
+        # After sunset: minimum brightness and the warmest color
+        await hass.services.async_call(
+            DOMAIN,
+            SERVICE_APPLY,
+            {
+                ATTR_ENTITY_ID: switch.entity_id,
+                CONF_LIGHTS: [ENTITY_LIGHT_1],
+                CONF_APPLY_TIME: "23:30:00",
+            },
+            blocking=True,
+        )
+        await hass.async_block_till_done()
+        sun_light_settings = switch._sun_light_settings
+        tz = sun_light_settings.timezone
+        at_time = datetime.datetime.combine(
+            dt_util.now(tz).date(),
+            datetime.time(23, 30),
+            tzinfo=tz,
+        )
+        expected = sun_light_settings.brightness_and_color(at_time, is_sleep=False)
+        applied_brightness = round(255 * expected[ATTR_BRIGHTNESS_PCT] / 100)
+        assert applied_brightness < 255
+        assert light_attributes()[ATTR_BRIGHTNESS] == applied_brightness
+        assert light_attributes()[ATTR_COLOR_TEMP_KELVIN] < noon_color_temp
+        # The switch keeps reporting the settings for the current time
+        assert switch._settings == settings
+        assert (
+            switch.manager.get_manual_control_attributes(ENTITY_LIGHT_1)
+            == LightControlAttributes.ALL
+        )
+        assert [event.data[ATTR_ENTITY_ID] for event in events] == [ENTITY_LIGHT_1]
+
+        # The regular adaptation leaves the light alone and does not mistake the
+        # applied values for another manual change.
+        await interval_update()
+        assert light_attributes()[ATTR_BRIGHTNESS] == applied_brightness
+        assert len(events) == 1
+
+        # Resetting manual control resumes regular adaptation
+        await hass.services.async_call(
+            DOMAIN,
+            SERVICE_SET_MANUAL_CONTROL,
+            {
+                ATTR_ENTITY_ID: switch.entity_id,
+                CONF_LIGHTS: [ENTITY_LIGHT_1],
+                CONF_MANUAL_CONTROL: False,
+            },
+            blocking=True,
+        )
+        await hass.async_block_till_done()
+        assert light_attributes()[ATTR_BRIGHTNESS] == 255
+        assert light_attributes()[ATTR_COLOR_TEMP_KELVIN] == noon_color_temp
+
+
+async def test_apply_service_at_time_marks_manual_before_adapting(hass):
+    """No regular adaptation can slip in between applying and marking manual."""
+    switch, _ = await setup_lights_and_switch(hass)
+    manual_during_adaptation = []
+    adapt_light = switch._adapt_light
+
+    async def record_and_adapt(light, *args, **kwargs):
+        manual_during_adaptation.append(
+            switch.manager.get_manual_control_attributes(light),
+        )
+        await adapt_light(light, *args, **kwargs)
+
+    with patch.object(switch, "_adapt_light", side_effect=record_and_adapt):
+        await hass.services.async_call(
+            DOMAIN,
+            SERVICE_APPLY,
+            {
+                ATTR_ENTITY_ID: switch.entity_id,
+                CONF_LIGHTS: [ENTITY_LIGHT_1],
+                CONF_APPLY_TIME: "22:00",
+            },
+            blocking=True,
+        )
+    assert manual_during_adaptation == [LightControlAttributes.ALL]
+
+
+async def test_apply_service_at_time_sleep_mode_and_partial(hass):
+    """Sleep mode takes precedence, and only adapted attributes become manual."""
+    switch, _ = await setup_lights_and_switch(hass, {CONF_SLEEP_TRANSITION: 0})
+    await hass.services.async_call(
+        SWITCH_DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: switch.sleep_mode_switch.entity_id},
+        blocking=True,
+    )
+    await hass.async_block_till_done()
+    sleep_brightness = round(255 * DEFAULT_SLEEP_BRIGHTNESS / 100)
+    assert hass.states.get(ENTITY_LIGHT_1).attributes[ATTR_BRIGHTNESS] == (
+        sleep_brightness
+    )
+
+    # Manual brightness change
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        SERVICE_TURN_ON,
+        {ATTR_ENTITY_ID: ENTITY_LIGHT_1, ATTR_BRIGHTNESS: 200},
+        blocking=True,
+    )
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        SERVICE_TURN_OFF,
+        {ATTR_ENTITY_ID: ENTITY_LIGHT_2},
+        blocking=True,
+    )
+    await hass.async_block_till_done()
+
+    await hass.services.async_call(
+        DOMAIN,
+        SERVICE_APPLY,
+        {
+            ATTR_ENTITY_ID: switch.entity_id,
+            CONF_LIGHTS: [ENTITY_LIGHT_1, ENTITY_LIGHT_2],
+            CONF_APPLY_TIME: datetime.time(12),
+            ATTR_ADAPT_COLOR: False,
+        },
+        blocking=True,
+    )
+    await hass.async_block_till_done()
+    assert hass.states.get(ENTITY_LIGHT_1).attributes[ATTR_BRIGHTNESS] == (
+        sleep_brightness
+    )
+    assert (
+        switch.manager.get_manual_control_attributes(ENTITY_LIGHT_1)
+        == LightControlAttributes.BRIGHTNESS
+    )
+    # Lights that are off are neither adapted nor marked
+    assert hass.states.get(ENTITY_LIGHT_2).state == STATE_OFF
+    assert not switch.manager.get_manual_control_attributes(ENTITY_LIGHT_2)
+
+
 async def test_switch_off_on_off(hass):
     """Test switch rapid off_on_off."""