Prayers (Salah) is an essential part of a Muslim’s daily life. Muslims all over the world, offer Fard prayers five times a day. These are Fajr, Dhuhr, Asar, Maghrib and Isha, also Jummah prayer on Friday in place of Dhuhr. Every muslim try to offer Salah with Imam as prayer timings are determined in accordance to the position of Sun. Position of the sum results in consistent changes in prayer timings throughout the year. Sometimes change in prayer time causes missing of Salah with Imam. Moreover, people need silence and disturbance-free environment inside the mosque in order to get focus or even retain focus on their Prayer and Dua. Mobile phone is one of the key factors of noise and disturbance. Today, Modern technology can be adopted to overcome these two problems 1) to alert people on time as per every change in prayer timings and 2) to mitigate the mobile phone noise.

This project is based on designing and implementing a modern digital clock/timing board. This timing board is interfaced with an android app which notifies the registered users about every change made by the admin. It is also integrated with GSM signal jammer ensuring auto turn-on and turn-off of jammer as per prayer timing. This project consists of two Modules i.e., Module-1: Android App (Software Module) and Module-2: Signal Jamming and Digital Clock (Hardware Module).