Presidents Day is Monday, February21. Just so you know, here is a list of closures for the day —

All county, state and federal offices and courts are closed.
Banks are closed, except for offices located in grocery stores.
State liquor stores are closed.
Post offices are closed, with no regular mail delivery or pickup.
The Port Authority Downtown Service Center is closed.

But, some things are open and operating on regular schedules —

City of Pittsburgh offices are open.
Garbage collection will proceed as scheduled for the week, unless there is inclement weather.
Port Authority buses and the T will operate on regular schedules.