Download widget, wallpaper or even both. Have them always on your computer, to know what animal signs rule each year, month, day and hour. Choose whether you want it based on solar on lunar calendar. Use this information to your benefit. Finally, they are absolutely free, so enjoy this gift.
This calculator will show you the compatibility between you and your friends. If you want to check if you have a chance to have a loving relationship put your date of birth together with date of birth of the person you want to check and see the result.