Question 1

How many days does September 2009 have?

Accepted Answer

September 2009 has 30 days. It starts on Tuesday and ends on Wednesday.

Question 2

What ISO week does September 2009 start in?

Accepted Answer

1 September 2009 falls in ISO week 36. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Indonesia in September 2009?

Accepted Answer

The calendar on this page marks every national public holiday of Indonesia in September 2009 in red, with joint/regional days in amber.