Times of Salaah

Beginning of Esha time

Q: I read that Maghrib prayer time ends when the redness in the sky goes away. Also I read that it ends half an hour before Isha Azan. Which one is true? Half an hour before Isha azan I feel the sky becomes darker. Can I still pray Maghrib or should I mention as qadha namaz? As I'm a working woman and gets little late to reach home and can't pray in van.

Salaah of a person who has urine drops problem and salaah time is about to expire

Q: A person has a urine problem, where if he goes to the toilet, for the next 30-45 minutes he cannot read salaah due to urine drops. If the time of salaah is about to end and the condition persists, does he have to make Wudu and perform salaah, or let the salaah become qadhaa and perform it after the time has expired. (The person is not a ma'zoor as the condition did not last for an entire salaah time)