the time for answered dua between asr and maghrib on fridays. is it really the last hour as in 60 minutes or the entire time between asr and maghrib, in the UK this is over 3 hours. jazakAllahu khair

The Ulema mentioned that what is meant by "hour" at the time of the Messenger (sallallahu alayhi wa sallam) is not what we consider to be 60 minutes. They say it is more like 15 or 20 minutes, or something similar. Keep in mind that what you have mentioned is one of the sayings of the scholars.