Rough Timeline of Events in the Book

The events all occur in 2002 (except the Epilogue). I'm working it out roughly as follows:
* Gallus Breitenmoser pops his old Swiss clogs.
* Danny is sitting around bored when his mum rings to let him know the sad news.
* Danny goes to Gallus's funeral, and hears about his big ideas.
* Inspired, Danny puts an ad in Loot, for people to Join him.
* Danny gets his first Joinee, Joinee Jonesy.
* Danny neglects to tell Hanne that Jonesy has 'Joined' him, nor that he has begun another 'silly boy project'.
* Danny and Hanne go to the Madras Valley - Hanne is not pleased.
* Seeking advice from Dennis M Hope for the first time, Danny is encouraged to meet his Joinee.
* Danny meets Jonesy at The World's End, and is introduced to his flatmate, who becomes Joinee Cobbett.
* Danny sends out emails, puts out links, and creates a website, to encourage interest.
* The first handful of Joinees send in their photos.
* Joinee Gaz arranges a 'meet' at Chandos, only he and Danny turn up.
* Upon reaching 100 Joinees, Danny is encouraged by his mate Ian to go for 1,000.
* Danny begins working on a promotional poster and stickers.
* Joinee Jade begins to have doubts.
* Joinee Whitby first comes to Danny's attention.
* Danny's encounter with a policeman.
* Joinee Jade leaves.
* Joinee Whitby gets restless.
* Danny gets a translation of Gallus's letters, and is inspired to help old men happy.
* Joinees meeting up in London (outside Harrods) are assigned the task to make old men happy, and provide evidence. 
* On this day (confirmed by PJ Whitby as being 27 July 2002), the Joinees are conned out of £38 by Raymond Price, in Hammersmith.
* Danny travels to Inverness, to seek spiritual guidance from priest Joinee Saunders.
* Encouraged to meet Joinee Estelle in Paris, Danny also encounters music-playing, card-reading Joinee Spacetoad.
* The terms 'Karma Army' and 'Good Friday' spring up, as Danny encourages Random Acts of Kindness.
* Danny meets a lady on the tube, and encourages Joinees to send her grandad peanuts.
* Following an article in the Inverness Courier, Danny sets off around the UK, meeting Joinees...
* ...eventually running into the odd Joinee Benjamin at Paddington Station.
* Danny receives bad-news about Raymond Price, and his life of crime.
* Danny meets Vis a Vis at a wedding reception.
* Danny gives up Join Me, going to Malia, Greece.
* Danny meets the Newcastle boys, who encourage him to re-instate the Karma Army.
* Returning home, Danny discovers the Karma Army has carried on without him regardless of his doubts.
* Danny records a Join Me Anthem with Vis a Vis.
* The Newcastle boys hang a giant sign off the Tyne Bridge.
* Danny goes to Belgium, to appear on TV, and recruits many Belgian Joinees.
* Danny fails to recruit 'Arlene Baptiste' (and parent).
* Danny finally meets his nemisis, Joinee Whitby.
* Danny approaches the Asian Xpress, in order to diversify the Karma Army.
* Someone sends Danny 'How To Succeed With Girls'.
* Danny goes to Holland.
* Danny is found out by Hanne.
* Danny goes to Norway, to get his girlfriend back.
* Danny fails.
* Danny recruits Norwegian Joinees.
* Danny is once more invited to Belgium, this time to help initiate The Ambassador Scheme in Brussels.
* The final 1,000 Joinees.
* Danny goes to Switzerland, to bury their photos.
* Danny realises Joinee Jade counts against his total of Joinees, and finds a last minute replacement.
* Karmageddon on Oxford Street.
* Danny remains the Leader, and Joinee Whitby becomes Gold Joinee Whitby.
* The Epilogue.