The world is still trying, and not trying, to standardize World Standards Day.
This year, World Standards Day was celebrated on October 14, 2015.
In the USA, World Standards Day was celebrated on September 28-October 2, 2015.
Last year, 2014, things were different. World Standards Day was on October 14, 2014. The USA celebrated World Standards Day on October 20-24, 2014.
The year before, in 2013, most of the world celebrated World Standards Day on October 14. But the USA celebrated on October 3, 2013.
And so on.
You can download the 2015 World Standards Day Poster.
BONUS: The excitement of the 2015 World Standards Day Paper Competition.