| Parameter | ISNA | MWL | Umm al-Qura (Mecca)* | | :--- | :--- | :--- | :--- | | | 15° below horizon | 18° below horizon | 18.5° (but fixed schedule) | | Isha angle | 15° below horizon | 17° below horizon | 90 min after Maghrib | | Asr method | Shafi / Maliki / Hanbali (standard) | Same | Same (but Hanafi option available) | | Suitable for Woodbridge? | ✅ Most common | ✅ Used by many apps | ❌ Not ideal (summer Isha too early) |