diff --git a/custom_components/groqd/config_flow.py b/custom_components/groqd/config_flow.py
index 987d179..a1ca949 100644
--- a/custom_components/groqd/config_flow.py
+++ b/custom_components/groqd/config_flow.py
@@ -36,6 +36,7 @@ from .const import (
     CONF_SEARXNG_SAFESEARCH,
     CONF_SEARXNG_LANGUAGE,
     CONF_AUTO_FETCH_URLS,
+    CONF_TIME_FORMAT,
     CONF_SEED,
     CONF_STOP,
     CONF_TEMPERATURE,
@@ -58,6 +59,7 @@ from .const import (
     DEFAULT_SEARXNG_LANGUAGE,
     DEFAULT_AUTO_FETCH_URLS,
     DEFAULT_FETCH_MAX_CHARS,
+    DEFAULT_TIME_FORMAT,
     DOMAIN,
 )
 from .const import DEFAULT_MAX_TOKENS, CONF_MAX_TOKENS
@@ -301,6 +303,18 @@ class GroqdOptionsFlow(OptionsFlow):
                 description={"suggested_value": options.get(CONF_AUTO_FETCH_URLS, DEFAULT_AUTO_FETCH_URLS)},
                 default=options.get(CONF_AUTO_FETCH_URLS, DEFAULT_AUTO_FETCH_URLS),
             ): bool,
+            vol.Optional(
+                CONF_TIME_FORMAT,
+                description={"suggested_value": options.get(CONF_TIME_FORMAT, DEFAULT_TIME_FORMAT)},
+                default=options.get(CONF_TIME_FORMAT, DEFAULT_TIME_FORMAT),
+            ): SelectSelector(
+                SelectSelectorConfig(
+                    options=[
+                        SelectOptionDict(label="12-hour", value="12h"),
+                        SelectOptionDict(label="24-hour", value="24h"),
+                    ]
+                )
+            ),
             vol.Optional(
                 CONF_LLM_HASS_API,
                 description={"suggested_value": options.get(CONF_LLM_HASS_API)},
diff --git a/custom_components/groqd/const.py b/custom_components/groqd/const.py
index 48cd4a1..7b05c6e 100644
--- a/custom_components/groqd/const.py
+++ b/custom_components/groqd/const.py
@@ -28,6 +28,7 @@ CONF_SEARXNG_URL = "searxng_url"
 CONF_SEARXNG_SAFESEARCH = "searxng_safesearch"
 CONF_SEARXNG_LANGUAGE = "searxng_language"
 CONF_AUTO_FETCH_URLS = "auto_fetch_urls"
+CONF_TIME_FORMAT = "time_format"
 
 DEFAULT_CHAT_MODEL = "meta-llama/llama-4-maverick-17b-128e-instruct"
 DEFAULT_CONTEXT_MESSAGES = 20
@@ -46,3 +47,4 @@ DEFAULT_SEARXNG_SAFESEARCH = 1
 DEFAULT_SEARXNG_LANGUAGE = "en"
 DEFAULT_AUTO_FETCH_URLS = True
 DEFAULT_FETCH_MAX_CHARS = 12000
+DEFAULT_TIME_FORMAT = "12h"
diff --git a/custom_components/groqd/conversation.py b/custom_components/groqd/conversation.py
index 08fde55..682b90d 100644
--- a/custom_components/groqd/conversation.py
+++ b/custom_components/groqd/conversation.py
@@ -35,6 +35,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.storage import Store
 from homeassistant.helpers import device_registry as dr, intent, llm, template
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.util import dt as dt_util
 from homeassistant.util import ulid
 
 from . import GroqdConfigEntry
@@ -53,6 +54,7 @@ from .const import (
     CONF_SEARXNG_SAFESEARCH,
     CONF_SEARXNG_URL,
     CONF_AUTO_FETCH_URLS,
+    CONF_TIME_FORMAT,
     CONF_SEED,
     CONF_STOP,
     CONF_TEMPERATURE,
@@ -71,6 +73,7 @@ from .const import (
     DEFAULT_SEARXNG_URL,
     DEFAULT_AUTO_FETCH_URLS,
     DEFAULT_FETCH_MAX_CHARS,
+    DEFAULT_TIME_FORMAT,
     DEFAULT_TEMPERATURE,
     DEFAULT_TOOL_CHOICE,
     DEFAULT_TOP_P,
@@ -395,6 +398,17 @@ class GroqdConversationEntity(
                 response=intent_response, conversation_id=conversation_id
             )
 
+        time_format = options.get(CONF_TIME_FORMAT, DEFAULT_TIME_FORMAT)
+        now = dt_util.now()
+        if time_format == "24h":
+            formatted_time = now.strftime("%H:%M")
+        else:
+            formatted_time = now.strftime("%-I:%M %p")
+        prompt_parts.append(
+            f"Current local time: {formatted_time}. "
+            "Always express time exactly in this numeric format; do not spell out numbers."
+        )
+
         if options.get(CONF_AUTO_FETCH_URLS, DEFAULT_AUTO_FETCH_URLS):
             urls = _extract_urls(user_input.text)
             if urls:
diff --git a/custom_components/groqd/translations/en.json b/custom_components/groqd/translations/en.json
index f88baee..97c566c 100644
--- a/custom_components/groqd/translations/en.json
+++ b/custom_components/groqd/translations/en.json
@@ -46,6 +46,7 @@
           "searxng_language": "SearxNG language",
           "searxng_safesearch": "SearxNG safe search",
           "auto_fetch_urls": "Auto-fetch URLs in user messages",
+          "time_format": "Time format",
           "llm_hass_api": "Home Assistant LLM API"
         },
         "data_description": {