Attributes of the one who gains the reward for giving iftaar to one who is fasting

If someone travels westwards and the times for prayer and breaking the fast at sunset are later than the times in the country that he left

She ate sahoor after dawn broke by mistake

Ruling on fasting for one who works checking content and erasing indecent scenes

The hadith “If dawn comes when a person is junub, he should not fast”

Can we rely on Ramadan timetables?