diff --git a/test_quick.py b/test_quick.py
new file mode 100644
index 000000000..8396c3f4c
--- /dev/null
+++ b/test_quick.py
@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+
+from unified_planning.shortcuts import *
+up.shortcuts.get_environment().credits_stream = None
+
+from unified_planning.plans.ttp_to_stn import *
+from unified_planning.test.examples import get_example_problems
+
+
+if __name__ == '__main__':
+
+    problems = get_example_problems()
+    problem = problems["matchcellar"].problem
+    with OneshotPlanner(problem_kind=problem.kind) as planner:
+        plan = planner.solve(problem).plan
+    ttp_to_stn = TTP_to_STN(plan, problem)
+    ttp_to_stn.get_table_event()
+    print("Done...")
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diff --git a/unified_planning/plans/ttp_to_stn.py b/unified_planning/plans/ttp_to_stn.py
index e69de29bb..784f4825f 100644
--- a/unified_planning/plans/ttp_to_stn.py
+++ b/unified_planning/plans/ttp_to_stn.py
@@ -0,0 +1,91 @@
+
+from typing import List
+import unified_planning as up
+from unified_planning.plans.time_triggered_plan import _absolute_time
+from unified_planning.plans.time_triggered_plan import *
+
+    
+def is_time_in_interv(
+    start, duration
+    ,timing: "up.model.timing.Timing", interval: "up.model.timing.TimeInterval"
+    )-> bool:
+    time_pt = _absolute_time(timing, start=start, duration=duration)
+    upper_time = _absolute_time(interval._upper, start=start, duration=duration)
+    lower_time = _absolute_time(interval._lower, start=start, duration=duration)
+    if (time_pt > lower_time if interval._is_left_open else time_pt >= lower_time) and (time_pt < upper_time if interval._is_right_open else time_pt <= upper_time):
+        return True
+    return False
+
+
+class TTP_to_STN():
+
+    """ Create a STN from a TimeTriggeredPlan"""
+    def __init__(self, plan: TimeTriggeredPlan, problem: "up.model.mixins.ObjectsSetMixin"):
+        self.ttp = plan
+        self.problem = problem
+        self.table = {}
+        self.events = {}
+
+
+    def sort_condition(self, start, duration, conditions:{"up.model.timing.TimeInterval", List["up.model.fnode.FNode"]}, effect: ("up.model.timing.Timing", List["up.model.effect.Effect"])
+    ) -> ("up.model.timing.Timing", List["up.model.fnode.FNode"]):
+        """
+        From the dict of condition get all conditions for the specific timepoint from the couple timepoint effect.
+        Return the coresponding timepoint conditions couple.
+        """
+        time_point = effect[0]
+        cond_result = []
+        for time_interval, condition in conditions.items():
+            if is_time_in_interv(start, duration, time_point, time_interval): # Time point in interval
+                cond_result += condition
+        result = (time_point, cond_result)
+        return result
+
+    
+    def get_table_event(
+            self
+    ) -> {DurativeAction : {"up.model.timing.Timing" : ("up.model.fnode.FNode", "up.model.effect.Effect")}}:
+        """
+        Return table : For each action (the tuple) and each timepoint of this action the couple conditions effects"""
+        for start, action, duration in self.ttp.timed_actions:
+            action_cpl = (start, action, duration)
+            self.table[action_cpl] = {}
+            for effect_time, effects in action.action._effects.items():
+                pconditions = self.sort_condition(start, duration, action.action._conditions, (effect_time, effects))
+                self.table[action_cpl].update({effect_time: (pconditions[1], effects)})
+
+    
+    def table_to_events(self) -> {"up.model.timing.TimXepoint": InstantaneousAction}:
+        """
+        Return a list where each time is paired with an Instantaneous Action.
+        Each Instantaneous Action is created from preconditions and effects from get_table_event()
+        """
+        result = {}
+        table = self.get_table_event()
+        for action_cpl, c_e_dict in table:
+            start = action_cpl[0]
+            duration = action_cpl[2]
+            action = action_cpl[1]
+            for time_pt, cond_eff_couple in c_e_dict:
+                time = 0 #TODO with time_pt start and duration
+                inst_action = InstantaneousAction(str(action)+str(time_pt))
+                #inst_action.preconditions = cond_eff_couple[0]
+                inst_action.effects = cond_eff_couple[1]
+                ## One or another 
+                inst_action.add_precondition(cond_eff_couple[0])
+                #inst_action.add_effect(cond_eff_couple[1]) # does not accept list of effects...
+                result.update({time: inst_action})
+        self.events = result
+    
+    def sort_events(self) -> {"up.model.timing.Timepoint": InstantaneousAction}:
+        self.table_to_events()
+        return self.events
+    
+    def events_to_partial_order_plan(self):
+        self.sort_events()
+        return
+    
+    def run(self):
+        self.events_to_partial_order_plan()
+        #partial order plan to STN
+        return
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