If he truly thought there was still time to eat, then his fast is valid and he does not have to repeat it.

If the person woke up late and thought that the time for soohur is there and he ate but he was informed that it was over about 20 minutes ago. Should he make up his fast of that day?

Fasting | July 4, 2017 3:14 am
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is it not true that the mother of the believers Aisha r.a used to delay fasting her missed fasts until the month of shaaban?
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i have a lot of fasts pending from previous ramadans…i would like to know wether taking the fasts now would be enough or do i have to pay some compensation for it considering that i am not a working person and it will be extremely difficult for my parents?