diff --git a/python_tutorials/time_window.py b/python_tutorials/time_window.py
new file mode 100644
index 0000000..a94f904
--- /dev/null
+++ b/python_tutorials/time_window.py
@@ -0,0 +1,63 @@
+class TimeWindow:
+    def __init__(self, start_time, end_time, delta):
+        """
+        Initialize the time window for the experiments.
+
+        :param start_time: The starting time of the experiment.
+        :param end_time: The final time of the experiment.
+        :param delta: The time interval (must be positive).
+        """
+        if delta <= 0:
+            raise ValueError(f"Error: Delta must be a positive number. Received delta={delta}")
+
+        self.start_time = start_time
+        self.end_time = end_time
+        self.delta = delta
+
+        self.num_experiments = (end_time - start_time) // delta
+        self.experiments = self.calculate_experiments()
+
+    def calculate_experiments(self):
+        """
+        Calculate the start and stop times for the model and observation windows.
+        """
+        experiments = []
+        for i in range(self.num_experiments):
+            model_start = self.start_time + i * self.delta
+            model_stop = model_start + self.delta
+
+            # Observation window is +/- 30 minutes from model stop time
+            window_start = model_stop - (30 * 60)
+            window_stop = model_stop + (30 * 60)
+
+            experiments.append({
+                "model_start": model_start,
+                "model_stop": model_stop,
+                "window_start": window_start,
+                "window_stop": window_stop
+            })
+
+        return experiments
+
+    def display_experiments(self):
+        """Prints the calculated experiment times."""
+        for i, exp in enumerate(self.experiments):
+            print(f"Experiment {i+1}:")
+            print(f"  Model Start: {exp['model_start']}")
+            print(f"  Model Stop: {exp['model_stop']}")
+            print(f"  Window Start: {exp['window_start']}")
+            print(f"  Window Stop: {exp['window_stop']}")
+            print("-" * 40)
+
+
+def main():
+    try:
+        # ✅ Use a positive delta value (1 hour = 3600 seconds)
+        tw = TimeWindow(start_time=0, end_time=36000, delta=3600)  
+        tw.display_experiments()
+    
+    except ValueError as e:
+        print(f"❌ Error: {e}")  # Display the error message
+
+if __name__ == "__main__":
+    main()
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