Update data/solar_calculations.py

data/solar_calculations.py

@@ -84,7 +84,7 @@ class SolarCalculations:
             if first_hour:
                 st.write(f"- **Equation of Time (EOT)**: {EOT:.2f} minutes")
 
-            standard_time = hour - 2 + 0.5  # Convert to decimal, assume mid-hour
+            standard_time = hour - 1 + 0.5  # Convert to decimal, assume mid-hour
             LST = standard_time + (4 * (lambda_std - longitude) + EOT)/60 
             if first_hour:
                 st.write(f"- **Local Solar Time (LST)**: {LST:.2f} hours")