Same here (on linux mint), but weeks are wrong until 43. The version of evolution-data-server here is 3.6.2-0ubuntu0.2
$ uname -a Linux ricab-desktopCERN 3.5.0-51-generic #77~precise1-Ubuntu SMP Thu Jun 5 00:47:34 UTC 2014 i686 i686 i686 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to evolution-data-server in Ubuntu. https://bugs.launchpad.net/bugs/1422424 Title: week 13 duplicate Status in evolution-data-server package in Ubuntu: Confirmed Bug description: I will see week number 13 twise there in this year! so weeks 14-18 are with wrong week number. Screenshot: https://dl.dropboxusercontent.com/u/4435155/Wrong_weeknumber/week.png Ubuntu 14.04.1 LTS ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: evolution-data-server 3.10.4-0ubuntu1.5 Uname: Linux 3.13.0-031300-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: GNOME Date: Mon Feb 16 18:24:43 2015 ExecutablePath: /usr/lib/evolution/evolution-calendar-factory InstallationDate: Installed on 2013-10-23 (481 days ago) InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017) ProcEnviron: XDG_RUNTIME_DIR=<set> SHELL=/bin/bash PATH=(custom, no user) LANG=fi_FI.UTF-8 LD_LIBRARY_PATH=<set> SourcePackage: evolution-data-server UpgradeStatus: Upgraded to trusty on 2014-06-26 (234 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution-data-server/+bug/1422424/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp