Nah untuk temen-temen yang  ga mau di cap sebagai jam karet cobain dech aplikasi ini, aplikasi ini pas banget ini untuk kalian.., 
Rainlendar sebuah aplikasi yang bisa mem-backup semua kegiatan kamu mulai hari ini, besok dan taon-taon akan datang.
Nah untuk lebih jelasnya tentang spesifikasi dan lainnya liat aja dibawah ini
| Platform   independent | 
| Rainlendar can be run on Windows, Mac OS X and Linux. All   platforms use the same file formats so all skins and scripts created for   different versions will work also on all. | 
| Localized | 
| Rainlendar supports localization so you can have the user interface   in your own language. Rainlendar is an Unicode application so different   character sets can be used at the same time. | 
| Standards   Compatible | 
| Rainlendar uses standard iCalendar format for it events   and tasks to maximize the compatibility with other calendar applications. You   can easily transfer the events from the calendar you are currently using to   Rainlendar. | 
| Look'n'feel  | 
| The appearance of the calendar can be changed with skins.   The skins can be of any shape and size and they can also use scripts for   additional functionality. It's also possible to combine different skins by   using e.g. the calendar from one skin and event and to do list from another.   The events and tasks can have different appearance depending on their   category. | 
| Highly   Customizable | 
| It is possible to have multiple months visible at the same   time. The months can be laid out the way you want and they can even have   different sizes. | 
| Multiple   Calendars | 
| You can have any number of calendars show at the same   time. Different calendars can show e.g. holidays, tv programs, your personal   events or what ever you like. | 
| Import &   Export | 
| Events and tasks can be transferred to and from other calendar   applications. You can also import the data from the old version of   Rainlendar. | 
| To do list | 
| In addition to normal events Rainlendar includes a   separate to do list where you can store your ongoing tasks. | 
| Alarms | 
| Get notified in advance before the event is due so that   you don't forget any important events. The alarm works with tasks too. | 
| Recurrence | 
| The events and tasks can be made to repeat automatically   so you don't have to enter them multiple times. It's also possible to have   exceptions in case the event doesn't happen on one particular day. | 
| Scripting | 
| Lua scripting language makes it possible to extend the   functionality of Rainlendar. | 
| Backups | 
| Integrated backup and restore functionality makes it easy   to make sure your events safe if something bad happens. | 
| Printing | 
| Print your events and tasks as a separate list or as a   month view. | 
| Search | 
| If you have a lot of events and tasks you can find the one   you are looking for easily with the substring search in the Manager dialog. | 
| Shared calendars   (Pro only) | 
| Subscribe to online calendars to stay up to date with the   current events. You can also publish your own calendar online. | 
| Outlook support   (Pro only) | 
| See the Microsoft Outlook's appointments in Rainlendar   without the need to keep Outlook open all the time. | 
- Windows 2000 or newer.
- 500 MHz or higher processor      clock speed recommended
- 15 MB of available hard      disk space
- 512 MB of RAM or higher      recommended
- A display card capable of      showing transparent windows
- Mac OS X Tiger (10.4) or      newer.
- 500 MHz or higher processor      clock speed recommended
- 15 MB of available hard      disk space
- 512 MB of RAM or higher      recommended
- Intel processor required
- Ubuntu 7.10 or equivalent      Linux distribution (newer versions should work too).
- 500 MHz or higher processor      clock speed recommended
- 15 MB of available hard      disk space
- 512 MB of RAM or higher      recommended
- Packages:
Windows:
Just run the installer and follow the instructions.
Mac OS X:
Double click on the .dmg file and copy the file to your Applications folder.
Linux (others):
See Installing Rainlendar2 on Ubuntu on the How-To Geek or the Installation guide on ArsGeek.
Or untar (tar jxvf Rainlendar-Pro-{version}.tar.bz2) and run (cd rainlendar2; ./rainlendar2)


