diff --git a/modules/bonneannee.py b/modules/bonneannee.py
index ab9ac7f..ede30ef 100644
--- a/modules/bonneannee.py
+++ b/modules/bonneannee.py
@@ -37,10 +37,8 @@ def load(context):
                 chan = sayon["channel"]
                 context.send_response(srv, Response(txt, chan))
 
-    d = datetime(yrn, 1, 1, 0, 0, 0, 0,
-                 timezone.utc) - datetime.now(timezone.utc)
-    context.add_event(ModuleEvent(interval=0, offset=d.total_seconds(),
-                                  call=bonneannee))
+    context.call_at(datetime(yrn, 1, 1, 0, 0, 0, 0, timezone.utc),
+                    bonneannee)
 
 
 # MODULE INTERFACE ####################################################
diff --git a/nemubot/bot.py b/nemubot/bot.py
index 8038b5a..0638e95 100644
--- a/nemubot/bot.py
+++ b/nemubot/bot.py
@@ -64,6 +64,13 @@ class Bot(threading.Thread):
         #
         self.loop = loop if loop is not None else asyncio.get_event_loop()
 
+        # Those events are used to ensure there is always one event in the next 24h, else overflow can occurs on loop timeout
+        def event_sentinel(offset=43210):
+            logger.debug("Defining new event sentinelle in %ss", 43210 + offset)
+            self.loop.call_later(43210 + offset, event_sentinel)
+        event_sentinel(0)
+        event_sentinel(43210)
+
         # External IP for accessing this bot
         import ipaddress
         self.ip = ipaddress.ip_address(ip)
@@ -242,6 +249,25 @@ class Bot(threading.Thread):
 
     # Events methods
 
+    @asyncio.coroutine
+    def _call_at(self, when, *args, **kwargs):
+        @asyncio.coroutine
+        def _add_event():
+            return self.loop.call_at(when, *args, **kwargs)
+        future = yield from asyncio.run_coroutine_threadsafe(_add_event(), loop=self.loop)
+        logger.debug("New event registered, scheduled in %ss", when - self.loop.time())
+        return future.result()
+
+
+    def call_at(self, when, *args, **kwargs):
+        delay = (when - datetime.now(timezone.utc)).total_seconds()
+        return self._call_at(self.loop.time() + delay, *args, **kwargs)
+
+
+    def call_delay(self, delay, *args, **kwargs):
+        return self._call_at(self.loop.time() + delay, *args, **kwargs)
+
+
     def add_event(self, evt):
         """Register an event and return its identifiant for futur update
 
diff --git a/nemubot/modulecontext.py b/nemubot/modulecontext.py
index b3b793c..bf9b54e 100644
--- a/nemubot/modulecontext.py
+++ b/nemubot/modulecontext.py
@@ -16,6 +16,13 @@
 
 import asyncio
 
+
+class _TinyEvent:
+
+    def __init__(self, handle):
+        self.handle = handle
+
+
 class _FakeHandle:
 
     def __init__(self, true_handle, callback):
@@ -27,9 +34,10 @@ class _FakeHandle:
         if self.callback:
             return self.callback()
 
+
 class _ModuleContext:
 
-    def __init__(self, module=None):
+    def __init__(self, module=None, knodes=None):
         self.module = module
 
         if module is not None:
@@ -43,6 +51,7 @@ class _ModuleContext:
 
         from nemubot.config.module import Module
         self.config = Module(self.module_name)
+        self._knodes = knodes
 
 
     def load_data(self):
@@ -65,8 +74,13 @@ class _ModuleContext:
         return None
 
 
+    def set_knodes(self, knodes):
+        self._knodes = knodes
+
+
     def add_event(self, evt):
-        return self.events.append(evt)
+        self.events.append(evt)
+        return evt
 
     def del_event(self, evt):
         return self.events.remove(evt)
@@ -88,6 +102,15 @@ class _ModuleContext:
             self._data = self.load_data()
         return self._data
 
+    @data.setter
+    def data(self, data):
+        self._data = data
+        return self._data
+
+    @data.deleter
+    def data(self):
+        self._data = None
+
 
     def unload(self):
         """Perform actions for unloading the module"""
@@ -97,7 +120,7 @@ class _ModuleContext:
             self.del_hook(h, *s)
 
         # Remove registered events
-        for evt, eid, module_src in self.events:
+        for evt in self.events:
             self.del_event(evt)
 
         self.save()
@@ -124,7 +147,7 @@ class ModuleContext(_ModuleContext):
 
 
     def load_data(self):
-        return self.context.datastore.load(self.module_name)
+        return self.context.datastore.load(self.module_name, self._knodes)
 
     def save(self):
         self.context.datastore.save(self.module_name, self.data)
@@ -147,20 +170,32 @@ class ModuleContext(_ModuleContext):
         yield from self.context.treater.treat_msg(msg)
 
 
-    def add_event(self, evt):
+    def _add_event(self, evt, call_add, *args, **kwargs):
         if evt in self.events:
             return None
 
         def _cancel_event():
-            logger.debug("Cancel event")
+            self.module.logger.debug("Cancel event")
             evt.handle = None
-            return super().del_event(evt)
+            return super(ModuleContext, self).del_event(evt)
 
-        hd = self.context.add_event(evt)
+        hd = call_add(*args, **kwargs)
         evt.handle = _FakeHandle(hd, _cancel_event)
 
         return super().add_event(evt)
 
+
+    def add_event(self, evt):
+        return self._add_event(evt, self.context.add_event, evt)
+
+    def call_at(self, *args, **kwargs):
+        evt = _TinyEvent(None)
+        return self._add_event(evt, self.context.call_at, *args, **kwargs)
+
+    def call_later(self, *args, **kwargs):
+        evt = _TinyEvent(None)
+        return self._add_event(evt, self.context.call_later, *args, **kwargs)
+
     def del_event(self, evt):
         # Call to super().del_event is done in the _FakeHandle.cancel
         return evt.handle.cancel()