Well Bro Balbeer Singh Ji,
As an ex Hindu Das here wants to inform you that as per astrologers Mahoorat or asupisius Days and Horoscopes are toatly differnat things.Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-sikhi-sikhism/3219-horoscopes-janam-kundli.html
As far as Horoscope is concern it is a sort of arrangement various palnatory and steller position during birht of a human ie time of birht.And based on then there are various extrpolations done to predict the life of that person.
If something wrong is predicted then to undo it vaour rituals are told.Like wearing stone etc.Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=3219
Veras Mahurat is based upon the fact as per astrologers the day which is good to do the job in question based upon steller position.Well due to this stupid thing in past hindus were defeated time and again by foregn invaders.
Sometime startegecally time was ripe to attack but they relyed on astrologer.In present also in may case BJP even lost election due to some of thier people going in for astrologers instead fo doing fgood for Hindus or Indians.
But as per Gurmat as you have already givne the Qoute that Day is Best or Good or Asupisouos when Akal does mercy on us and we have devotion to that.So it is Akal and will of the same which mattter.
Forgive Das if wrong is writtan.