It's hadith that on Friday there is an hour in which we can ask Allah tala for anything and He will give it us unless we ask for something haram. So, I wanted to ask if the hour is between as and maghrib?
There is a difference of opinion on this matter due to the differences in the hadith narrations, but the most common opinion is that it is the hour before the maghrib prayer.
'Abdullah b. Umar said to me: Did you hear anything from your father narrating something from the messenger of Allah (ﷺ) about the time on Friday? I said: Yes, I heard him say from the Messenger of Allah (ﷺ) (these words):" It is between the time when the Imam sits down and the end of the prayer." (Sahih Muslim, Book 7, Hadith 25)
The Prophet (ﷺ) said: Friday is divided into twelve hours. Amongst them there is an hour in which a Muslim does not ask Allah for anything but He gives it to him. So seek it in the last hour after the afternoon prayer. (Sunan Abi Dawud, Book 2, Hadith 659 and al-Nasa'i, Vol. 2, Book 14, Hadith 1390)
According to Imam Ahmad, as quoted by al-Tirmidhi in Sunan al-Tirmidhi (Shakir editition, no. 489):
Most of the hadith narrations on the hour on which the acceptance of prayer is expected say that it after the asr prayer, and that it is [most] expected when the sun starts to get low [when it is close to setting].
According to Ibn al-Qayyim in his Zad al-Ma`ad:
In my opinion the hour of the prayer [i.e. from the Friday call to prayer until the prayer is performed] is also an hour in which the acceptance of prayer is to be expected. Both of them are hours of acceptance, even if the specified hour is the final hour after the asr prayer [i.e. the hour before maghrib] ... because the gathering of the Muslims, their prayer, their submission and their entreaties toward God will have an effect on the acceptance of their prayer, therefore the hour of their gathering is an hour in which the acceptance of prayer is to be expected.