Fasting Ends with the Setting of the Sun

If a woman who is in a state of ritual purity is fasting and Maghrib time arrives but she does not break her fast, and she continues without breaking it because she is sleeping, and then she starts menstruating after Maghrib without having broken her fast, is her fast for that day considered valid? Also, if something that breaks the fast enters a person after sunset and he does not break his fast, is he considered fasting or having broken his fast?

Look, may Allah bless you: When the sun sets, the fast ends, whether the person eats or not. If a woman starts menstruating after the sun sets, her fast is complete. If a person eats after the sun sets, his fast is complete; because, by the Shari'ah, fasting ends with the setting of the sun.Allah the Exalted said: [al-Baqarah: 187] And the Prophet (peace and blessings be upon him) said: “When the night comes from this direction” — and he pointed to the east — “and the day departs from this direction” — and he pointed to the west — “and the sun sets, then the fasting person has broken his fast”.