We call it in Tamil, Deepavali. (dee-pa-va-lee)
As Malaysia has a large muslim population , I doubt they celebrate Diwali.
Diwali is a five day festival. It started with Dhanteras.
There are 14 states in Malaysia.
On Diwali-this indicates festival Diwali. At Diwali-It might indicates Diwali is some Place.
There is NO Diwali in Romania because 80% of people there are Christian and the 20% are Jewish,there are no Indians in Romania.I know this because I'm from Romania:)
Each year Deepavali / Diwali falls on different dates and sometimes different months (October - November).Deepavali.net is a very useful site to know Diwali dates on different years.
Malaysia means land holding Malay speaking people in Asia
Diwali cards are sent to peple on diwali to wish them.
I don't know about Japan but for Malaysia, it's Rosmah.
Fire crackers are Diwali crackers. Being lighten up on diwali people also call them as Diwali crackers.
Diwali is spelled Diwali.
That is where they were born and what they know.