One who eats the pre-dawn meal and then it becomes clear that the time has entered

Question:
The questioner says: I got up for the pre-dawn meal and ate, and I estimated that the time had not yet come. After my pre-dawn meal, I confirmed that the time had entered. Do I complete my fast?

Answer:
Yes, you do not complete your fast if you ate thinking the night was still there, and then it became clear that it was daytime; your fast is not valid. It became clear that it was daytime. However, if you ate thinking the night was still there and nothing became clear to you, you remain on your assumption, and there is no harm in that, because the default is that the night remains. The default is that the night remains. But in the first case, if it becomes clear to you, the default has changed; it became clear to you that you are in the daytime, so you have no fast. But regarding the obligation in Ramadan, even if it becomes clear to you that it is after the dawn, you are required to abstain for the rest of the day, but you must make up that day in the future. Yes.