changed default date

app.py

@@ -37,7 +37,8 @@ if selected_roads and st.button("Load Road Data"):
     st.success("Road data loaded successfully.")
 
 if st.session_state.get("roads_loaded"):
-    default_date = st.session_state.get("selected_date", datetime.now().date())
+    # Set default date to March 15, 2025 if no date is stored in session state
+    default_date = st.session_state.get("selected_date", datetime(2025, 3, 15).date())
     default_time = st.session_state.get("selected_time", datetime.now().time())
 
     st.date_input("Choose Date", value=default_date, key="selected_date",