Is it permissible to eat a few seconds before the Adhan, without hearing the Adhan, and in a Shiite area where they call the Adhan after the Sunnis?

When the sun has set, it is permissible for the fasting person to break their fast, regardless of the muezzin's adhan (definition), based on the Prophet's (peace be upon him) saying: "When the night approaches from here, and the day departs from here, and the sun has set, then the fasting person has broken their fast." And also based on his saying: "People will continue to be upon goodness as long as they hasten the breaking of the fast." And certainty of its setting is not a condition; rather, a strong presumption is sufficient.