As "Black Friday" follows Thanksgiving in the United States, "White Day" follows Valentines Day in Japan.

Card makers, retailers and advertisers have young people planning weeks ahead to make their "Friendship Day" buys in India, clicking their favorite online purchases on "Singles Day" in China, and even eating their hearts out at fast-food giant KFC in Japan for Christmas.

Much as Thanksgiving has spurred businesses to create Black Friday (and now Gray Thursday and Cyber Monday) to get shoppers into stores, countries around the world have turned average dates on the calendar into must-buy events.

We take a look at a few such engineered days that promise love and happiness through retail therapy -- and, of course, profits for the companies behind it.

White Day, March 14: Japan, South Korea and Taiwan

Cupid aims his bow and arrows a bit differently in Japan and reverses the western ways of lovers.

On Valentine's Day, or Barentain Dei in Japan, women indulge their significant others with gifts and chocolates. And so, on White Day, celebrated exactly a month after Valentine's Day in February, men are supposed to return the favor of love and the giri choco, or obligation chocolates.

White Day was first observed over 30 years ago by Japanese confectionary companies, according to Japanese media. In a ploy to boost marshmallow sales in the country, they started encouraging men to gift them to their female lovers, as a symbol of gratitude.

Today, the Valentine's return-gift can be anything white -- white chocolate, jewelry, lingerie, flowers -- not just gooey and tender marshmallows.

This holiday for the heart has now spread to South Korea and Taiwan.

Friendship Day, first Sunday of August: India

While July 30 is the official, recently-declared United Nation's "International Day of Friendship," India celebrates it a few weeks later.

The origins of Friendship Day in India though, are fuzzy at best. Some say the choice of day was cooked-up by Hallmark-founder Joyce Hall. Wherever the holiday came from, India's burgeoning youth and aspiring middle-class have welcomed it with open arms.

It is frequently featured in Bollywood movies too. Typically, friends -- platonic or romantic -- exchange the popular friendship bands, woven hemp or jute bands meant to be tied on your friends' wrists.

Retailers start their Friendship Day campaigns and deals weeks in advance. Flower vendors, restaurants, stores and e-commerce portals willingly add to the pomp and show, according to local media.

On the day, the streets of urban India are teeming with young men and women on motorcycles, huddled in the popular markets, cafes and malls, celebrating this annual fête.

Archies (Hallmark's India partner), a leader in India's "Social Expressions Industry" with over 50% of the market share, has seen a continuous increase in its gift sales segment but a weakening greeting cards segment.

Click Frenzy, November 20-21: Australia

In Australia, online retail trade site Power Retail launched a 24-hour sale website called "Click Frenzy" as the country's version of "Cyber Monday."

The newcomer to this slew of commercial holidays was launched on November 20 at 7 p.m. local time and it was the first online shopping event in Australia. Clickfrenzy.com.au aimed at aggregating and posting deals from over 200 retailers and redirecting shoppers to company websites of participants such as Dan Murphy's, Camera House, Lenovo, Fila, Expedia, Dick Smith, Clinique, Roxy and Dell.