The Blues are the only English team involved in the UEFA Champions League in midweek whose weekend game has not been scheduled for Sunday.
Mourinho was similarly upset last month when they were forced to play Manchester City and Arsenal with little over 48 hours rest.
Arsenal and Manchester United clash as part of Sky Sports' Super Sunday Hat-Trick, which also includes City's trip to Sunderland.
And Mourinho feels those with the power to change the schedule are making fun of Chelsea, as he said: "I think they laugh.
"They know what they can do and laugh because I can do nothing.
"The people who decide the fixtures, I don't know who they are but what I know is that they think we're special and give us the right fixtures. We're the only ones who play Wednesday and Saturday.
"I feel our match is very special because from every English team involved in European competitions, especially the ones involved in Champions League matches, we're the only team that play Saturday.
"Everybody has one more day to rest. Others play Tuesday and Sunday. Once more we're really special and maybe our game versus West Brom becomes the 'Special Saturday'.
"It is happening a lot with us. Instead of having 15 days to prepare for West Ham, now we have 16 days, which is good.
"I think Big Sam will be very upset because we have 16 days to prepare for the game. That is good."