M
Markpro1
Guest
Is Celebrating Mass on a Saturday afternoon ok? or is Sunday the only day the Mass should be celebrated? Thank you. 
Sunset is not a very specific indecator of when Sunday begins. There are different ways to figure that time depending on the location in the world. The Holy See through the respective Bishop’s Conference has determined what is properly suited for each location. As has been said eleware 4PM is the general norm for the US but as in cases such was with Bishop Pepe in Las Vegas he has obviously given a greater permission because of the particular needs in his See.I understand that for a '“vigil” (Saturday) Mass to satisfy the Sunday Mass obligation, it must occur after sunset or 6 pm, unless otherwise permitted by the Bishop. In Las Vegas the Bishop allows one church to have a vigil Mass at 2 pm Saturday for people who work at the casinos etc which are open 24 hours a day and have rotating work shifts.