Thank you all. About Mawakit, yes I have it. But the times it shows doesn't match the times in my location, but this app provides correct results for it. I've not investigated to see why, but it is the case. About using online sources, that is a great suggestion for future improvements. Prayers is currently an offline application but it might be possible to add online sources too. Or if you know of any other libraries which can be used offline, I'd appreciate to know about. Regards, Hedayat