diff --git a/sample.config.yaml b/sample.config.yaml
index a3aed63..a4ba95b 100644
--- a/sample.config.yaml
+++ b/sample.config.yaml
@@ -39,6 +39,8 @@ vetting:
   room_id: "!xxx:xxx"
   # A space which will house all the vetting rooms
   space_id: "!xxx:xxx"
+  # Voting time in seconds
+  voting_time: 172800
 
 # Logging setup
 logging:
diff --git a/vetting_bot/bot_commands.py b/vetting_bot/bot_commands.py
index ab305ac..d8c4478 100644
--- a/vetting_bot/bot_commands.py
+++ b/vetting_bot/bot_commands.py
@@ -15,6 +15,7 @@ from nio import (
 from vetting_bot.chat_functions import react_to_event, send_text_to_room
 from vetting_bot.config import Config
 from vetting_bot.storage import Storage
+from vetting_bot.timer import Timer
 
 logger = logging.getLogger(__name__)
 
@@ -249,9 +250,16 @@ class Command:
             await send_text_to_room(self.client, self.room.room_id, text)
             return
 
+        voting_start_time = time.time()
+
         self.store.cursor.execute(
             "UPDATE vetting SET poll_event_id = ?, voting_start_time = ? WHERE mxid = ?",
-            (poll_resp.event_id, time.time(), vetted_user_id),
+            (poll_resp.event_id, voting_start_time, vetted_user_id),
+        )
+
+        timer = Timer(self.client, self.store, self.config)
+        await timer.wait_for_poll_end(
+            vetted_user_id, poll_resp.event_id, voting_start_time
         )
 
     async def _unknown_command(self):
diff --git a/vetting_bot/config.py b/vetting_bot/config.py
index eaf3378..ef8a856 100644
--- a/vetting_bot/config.py
+++ b/vetting_bot/config.py
@@ -115,6 +115,8 @@ class Config:
         if not re.match("!.*:.*", self.vetting_space_id):
             raise ConfigError("vetting.space_id must be in the form !xxx:domain")
 
+        self.voting_time = int(self._get_cfg(["vetting", "voting_time"], required=True))
+
     def _get_cfg(
         self,
         path: List[str],
diff --git a/vetting_bot/main.py b/vetting_bot/main.py
index 121212e..3745ad2 100644
--- a/vetting_bot/main.py
+++ b/vetting_bot/main.py
@@ -19,6 +19,7 @@ from nio import (
 from vetting_bot.callbacks import Callbacks
 from vetting_bot.config import Config
 from vetting_bot.storage import Storage
+from vetting_bot.timer import Timer
 
 logger = logging.getLogger(__name__)
 
@@ -108,6 +109,14 @@ async def main():
 
             client.server = client.user_id.split(":", maxsplit=1)[1]
 
+            timer = Timer(client, store, config)
+
+            async def start_timer_with_delay():
+                await asyncio.sleep(5)
+                await timer.start_all_timers()
+
+            asyncio.create_task(start_timer_with_delay())
+
             await client.sync_forever(timeout=30000, full_state=True)
 
         except (ClientConnectionError, ServerDisconnectedError):
diff --git a/vetting_bot/storage.py b/vetting_bot/storage.py
index cbb3993..b912688 100644
--- a/vetting_bot/storage.py
+++ b/vetting_bot/storage.py
@@ -111,7 +111,8 @@ class Storage:
                     room_id VARCHAR(255) NOT NULL UNIQUE,
                     vetting_create_time INT(12),
                     voting_start_time INT(12),
-                    poll_event_id VARCHAR(255)
+                    poll_event_id VARCHAR(255),
+                    vote_ended BOOLEAN NOT NULL DEFAULT FALSE
                 )
                 """
             )
diff --git a/vetting_bot/timer.py b/vetting_bot/timer.py
new file mode 100644
index 0000000..30e8a67
--- /dev/null
+++ b/vetting_bot/timer.py
@@ -0,0 +1,71 @@
+import asyncio
+import logging
+import time
+
+from nio import AsyncClient, RoomSendError
+
+from vetting_bot.config import Config
+from vetting_bot.storage import Storage
+
+logger = logging.getLogger(__name__)
+
+
+class Timer:
+    def __init__(
+        self,
+        client: AsyncClient,
+        store: Storage,
+        config: Config,
+    ):
+        self.client = client
+        self.store = store
+        self.config = config
+
+    async def start_all_timers(self):
+        self.store.cursor.execute(
+            """
+            SELECT mxid, poll_event_id, voting_start_time, vote_ended
+            FROM vetting
+            WHERE voting_start_time IS NOT NULL
+            """
+        )
+
+        rows = self.store.cursor.fetchall()
+        for row in rows:
+            if row[3]:
+                continue
+
+            await self.wait_for_poll_end(
+                mxid=row[0], poll_event_id=row[1], start_time=row[2]
+            )
+
+    async def wait_for_poll_end(self, mxid: str, poll_event_id: str, start_time: int):
+        async def _task():
+            time_left = start_time + self.config.voting_time - time.time()
+            await asyncio.sleep(time_left)
+            await self._end_poll(mxid, poll_event_id)
+
+        asyncio.create_task(_task())
+
+    async def _end_poll(self, mxid: str, poll_event_id: str):
+        event_content = {
+            "m.relates_to": {
+                "rel_type": "m.reference",
+                "event_id": poll_event_id,
+            }
+        }
+
+        poll_resp = await self.client.room_send(
+            self.config.vetting_room_id,
+            message_type="org.matrix.msc3381.poll.end",
+            content=event_content,
+        )
+
+        if isinstance(poll_resp, RoomSendError):
+            logger.error(poll_resp, stack_info=True)
+            return
+
+        self.store.cursor.execute(
+            "UPDATE vetting SET vote_ended = 1 WHERE mxid = ?",
+            (mxid,),
+        )