I got a script of prayer times from PrayTimes.org to learn how the formula to make the prayer time. It’s a pity that this scripts is written not by the Indonesian people or people who consider that Indonesia exists, or that Indonesia has a muslim population percentage that needs to be considered. That is why there is no criteria of the Ministry of Religion of the Republic of Indonesia in the choice of the method are provided. And as Indonesian people, I feel the need to add the criteria of the Ministry of Religion of the Republic of Indonesia into the script. You can see the results of modifications on PrayTimes.js.