Just thought I'd post this save someone some time: Auto generates american holidays for the current year for FullCalendar by arshaw

holidays.php

<?php $year = date('Y'); ?>
[
  {
  start: new Date( <?php echo $year . ', 1-1, 1'; ?> ),
  url: "http://wikipedia.org/wiki/New_Year%27s_Day" ,
  title: "New Year's Day",
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('january ' . $year . ' third saturday')); ?> ),
  url: "http://wikipedia.org/wiki/Dr._Martin_Luther_King,_Jr._Day" ,
  title: "Dr. Martin Luther King, Jr. Day" ,
  allDay: true,
  category: "Holidays",
  },  
  {
  start: new Date( <?php echo $year . ', 1, 2'; ?> ),//February 2
  url: "http://wikipedia.org/wiki/Groundhog_Day" ,
  title: "Groundhog Day",
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo $year . ', 1, 14'; ?> ),//February 14
  url: "http://wikipedia.org/wiki/Valentine%27s_Day" ,
  title: "Valentine's Day",
  allDay: true,
  category: "Holidays",
  },  
  
  //February
  
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('february ' . $year . ' third monday')); ?> ),
  url: "http://wikipedia.org/wiki/Presidents%27_Day" ,
  title: "Presidents' Day" ,
  allDay: true,
  category: "Holidays",
  },
  
  //March
  
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('-1 week', easter_date() ) ); ?> ),//Sunday before Easter
  url: "http://wikipedia.org/wiki/Palm_Sunday" ,
  title: "Barefoot Sunday",
  allDay: true,
  category: "Holidays",
  }, 
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('-2 days', easter_date() ) ); ?> ),//The Friday before Easter
  title: "Good Friday",
  url: "http://wikipedia.org/wiki/Good_Friday" ,
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', easter_date() ); ?> ),//Don't even ask
  title: "Easter Sunday",
  url: "http://wikipedia.org/wiki/Easter",
  allDay: true,
  category: "Holidays",
  }, 
  
  //April
  
  {
  start: new Date( <?php echo $year . ', 3, 1'; ?> ),//April 1
  url: "http://wikipedia.org/wiki/April_Fools%27_Day" ,
  title: "April Fools' Day",
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('may ' . $year . ' last friday')); ?> ),//Last Friday in April
  url: "http://wikipedia.org/wiki/Arbor_Day" ,
  title: "Arbor Day",
  allDay: true,
  category: "Holidays",
  },  
  
  //May
  
  {
  start: new Date( <?php echo $year . ', 4, 5'; ?> ),//May 5
  url: "http://wikipedia.org/wiki/Cinco_de_Mayo",
  title: "Cinco de Mayo",
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('may ' . $year . ' second sunday')); ?> ),//Second Sunday in May
  url: "http://wikipedia.org/wiki/Mother%27s_Day" ,
  title: "Mother's Day",
  allDay: true,
  category: "Holidays",
  },  
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('june ' . $year . ' last monday')); ?> ),// wierd error -1 month
  url: "http://wikipedia.org/wiki/Memorial_Day" ,
  title: "Memorial Day" ,
  allDay: true,
  category: "Holidays",
  },  
  
  //June
  
  {
  start: new Date( <?php echo $year . ', 6, 1'; ?> ),//June 1
  url: "http://wikipedia.org/wiki/Independence_Day_(US)" ,
  title: "Independence Day" ,
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('june ' . $year . ' third sunday')); ?> ),//Third Sunday in June
  url: "http://wikipedia.org/wiki/Father%27s_Day" ,
  title: "Father's Day",
  allDay: true,
  category: "Holidays",
  }, 
  
  //September
    
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('september ' . $year . ' first monday')); ?> ),//First Monday in September
  url: "http://wikipedia.org/wiki/Labor_Day" ,
  title: "Labor Day",
  allDay: true,
  category: "Holidays",
  },  
  
  //October
  
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('october ' . $year . ' second monday')); ?> ),//Second Monday in October
  url: "http://wikipedia.org/wiki/Columbus_Day" ,
  title: "Columbus Day",
  allDay: true,
  category: "Holidays",
  },
  {
  start: new Date( <?php echo $year . ', 11-1, 11'; ?> ),//October 31
  url: "http://wikipedia.org/wiki/Halloween" ,
  title: "Halloween",
  },
  
  //November
  
  {
  start: new Date( <?php echo $year . ', 11-1, 11'; ?> ),//November 11
  url: "http://wikipedia.org/wiki/Veterans_Day",
  title: "Veterans Day",
  allDay: true,
  category: "Holidays",
  },  
  {
  start: new Date( <?php echo date('Y ,m-1 ,d', strtotime('november ' . $year . ' fourth thursday')); ?> ),//Fourth Thursday in November
  url: "http://wikipedia.org/wiki/Thanksgiving_(United_States)" ,
  title: "Thanksgiving Day",
  allDay: true,
  category: "Holidays",
  },  
  
  //December
  
  {
  start: new Date( <?php echo $year . ', 12-1, 25'; ?> ),//December 25
  url: "http://wikipedia.org/wiki/Christmas" ,
  title: "Christmas",
  allDay: true,
  category: "Holidays",
  },
]