Today is President's Day, the federal holiday celebrating the birthdays of George Washington (born February 22, 1732) and Abraham Lincoln (born February 12, 1809). The NY Times, which refers to the day as Washington's Day, notes the closings today—government offices, post offices (but the main branch on Eighth Avenue is open), schools, no sanitation pickup, financial markets—plus the fact that NYC subways and buses are on a Saturday schedule (the LIRR is on a holiday/weekend schedule while Metro-North is on a Saturday schedule). Yes, some people heading to work today got the rude awakening that the F was running along the A line between West 4th Street and Jay Street/MetroTech.
It's President's Day (And There's Saturday Subway Service)
July 4 Is Being Observed Today, July 5
Because July 4th fell on a Sunday yesterday, the holiday is being observed today. Which is why most of you have today off. Here are other details about government offices (closed) and mass transit today from the NY Times.
Martin Luther King, Jr. Day Is Today
Today is Martin Luther King Jr. Day — the civil rights leader's birthday was actually on January 15th, but the federal holiday has been observed on the third Monday of January since 1986.
It's Columbus Day
Today is Columbus Day, and since it's a federal, state and local holiday, there are many closings. Public schools and public offices are closed. There is no mail delivery, but the James Farley Post Office at Eighth Avenue and West 33rd Street is open. There's no garbage or recycling pick up or street cleaning. On the other side, the stock market is open, the MTA is running service on a weekday schedule, and many people are expected to work today.
Happy July 4th Eve!
Since July 4th falls on a Saturday, today is a federal holiday. Government offices are closed, and most post offices are closed—the Farley Post Office at 8th Avenue and 32nd Street is open. Sunday parking rules are in effect and while there will be sanitation "pickups, street cleaning and recycling on Friday," there won't be any on Saturday according to the NY Times. Also, the subways are running on a Saturday schedule, while city buses are running on a Sunday one—and Metro-North and Long Island Rail Road are on a regular weekday schedule. Many businesses are giving employees the day off—are you taking it easy today?
It's Presidents' Day
Today is a federal holiday honoring the birthday of first president George Washington. Washington was actually born on February 22, but in 1971, the holiday was "shifted to the third Monday in February, by the Uniform Monday Act" (per Wikipedia). Given that Abraham Lincoln's birthday is February 12, some state governments call the holiday "President's Day." And then the marketers got involved, making this day for sales as well and many presidents in one fell swoop.
Martin Luther King Jr. Day Today
Today is Martin Luther King Jr. Day, to celebrate his accomplishments as a civil rights leader and to remember there is still work to be done in many areas, from racial equality to living a more peaceful, understanding existence. King's birthday is actually January 15, 1929, but the federal holiday has been observed on the third Monday of January since 1986 (the first time all 50 states observed the holiday was in 2000).

