Runescape - The fifth Bonus XP Weekend

March 2012
The fifth Bonus XP Weekend will start on 16 March 2012, and RuneScape players will want to check into the game beginning for a bonus weekend. According to the press release, players will receive "a multiplier on any standard training activity they perform as they play. This multiplier will begin at 2.7 times the normal training activities rate, and will decrease every thirty minutes of game time until it reaches 1.1 times the rate, where it will remain for the rest of the Bonus XP Weekend."

Bonus XP Weekends are events where players receive bonus experience when training skills. Runescape Bonus XP Weekends start on a Friday and ends on the following Monday (three days later). The bonus experience is gained when performing most normal training activities, but does not apply to things like quest rewards, random event rewards, or D&D rewards.

March 2011
The third Bonus XP Weekend of March 2011 was held from 11 to 14 March 2011. The mechanics of the weekend was the same as the last RS bonus XP weekend: players started with a 2.7x multiplier which (with a few notable exceptions) amplified all experience received. This multiplier decreased once every 30 minutes for 10 hours, thereafter providing a 1.1x multiplier for the remainder of the bonus XP weekend.

March 2010
The RS first Bonus XP weekend (initially called Double XP weekend) was an event that started at 12:00 PM GMT Friday, 12 March 2010 and lasted until early afternoon 12:07 PM GMT Monday, 15 March 2010[1].

Originally, Jagex released an equation that gave the xp multiplier as a function of time, and it was stated that the multiplier would be recalculated on every XP event, accurate to one minute.

However, when the event started, players noticed that the RS bonus xp multiplier was lower than expected; it only changed every 45 minutes, and was always a multiple of 0.1. This was due to intermediate rounding. The above formula and graph were then deleted from the developer blog and Mod Fnord said that the mistake would not be corrected.