Bristlebane Day 2014 will run from 12:01am PDT on March 28th through 11:59pm PDT on April 10th.

Special one-day events on April 1st, the Highest of Silly Days!

Jesters, thieves, bards and fans of mischief are invited to enjoy the festivities that surround Bristlebane Day! You never know what riddles, laughs and pranks are to be found during this time of year. Celebrators are present in every home city and the oddest of objects have been spotted in Antonica, The Commonlands, Darklight Wood, Timorous Deep, Greater Faydark and Frostfang Sea. Be sure to keep your eyes peeled for special events, especially in the Enchanted Lands, occurring only on the Highest of Silly Days!

http://eq2.zam.com/wiki/Bristlebane_Day_(EQ2_Live_Event)