What is the Islamic legal ruling concerning the custom of Islamic associations in China to delay the start and end of Ramadan by one day, given that China's time precedes that of Arab countries by five hours, which leads to Muslims in China fasting and breaking their fast after the people of the Sacred Mosque in Mecca?

Muslims in China must form a Sharia committee composed of scholars and experienced individuals to investigate the sighting of the moon, in order to avoid confusion and disarray regarding fasting and breaking the fast. If this is not possible, they can fast or break their fast based on the sighting in the nearest neighboring Muslim country. They are not permitted to follow Makkah's timing due to the time difference. They must fast and break their fast based on their own sighting of the crescent moon, acting upon the words of the Prophet, peace and blessings be upon him: "Fast when you see it [the new moon], and break your fast when you see it. If it is obscured from you, then complete thirty days of Sha'ban." The Islamic Fiqh Council has issued a fatwa allowing for the consideration of differing moonrise locations.