I had to know more, so I looked up a little information on it. The Vietnamese calendar is a lunar calendar, based on the cycles of the moon, which is why the new year is being celebrated now; it doesn't quite line up with the European calendar used by the western world.
I found a description of people born in a Cat Year (like the Chinese horoscope system, there are 12 signs, changing each year):
|Postage stamps commemorating the Year of the Cat|
An article on a New Year's celebration contained this further information:
The Year of the Cat generally represents peace and harmony. There are three types of horoscope cats in Vietnamese tradition: water cats, wood cats and metal cats. This year is a metal cat year, considered good luck in Vietnam. The metal cat represents resilience, determination and strength.
HAPPY NEW YEAR OF THE CAT