Easy London time menu bar item for OS-X in Swift 2.

LondonTime.swift

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
    
    var statusItem:NSStatusItem!
    var timer:NSTimer!

    func applicationDidFinishLaunching(aNotification: NSNotification) {
        let statusBar = NSStatusBar.systemStatusBar()
        
        self.statusItem = statusBar.statusItemWithLength(CGFloat(80.0))

        self.updateLabel()
        
        self.timer = NSTimer(timeInterval: NSTimeInterval(60), target: self, selector: Selector("updateTime:"), userInfo: self, repeats: true)
        NSRunLoop.currentRunLoop().addTimer(self.timer, forMode: NSDefaultRunLoopMode)
    }
    
    func updateTime(t: NSTimer) {
        self.updateLabel()
    }

    func updateLabel() {
        let time = NSDate()
        let formatter = NSDateFormatter()
        formatter.timeZone = NSTimeZone(forSecondsFromGMT: 3600)
        formatter.dateStyle = NSDateFormatterStyle.NoStyle
        formatter.timeStyle = NSDateFormatterStyle.ShortStyle
        self.statusItem.title = "LDN " + formatter.stringFromDate(time)
    }
    
}