Question 1

How many days does September 2011 have?

Accepted Answer

September 2011 has 30 days. It starts on Thursday and ends on Friday.

Question 2

What ISO week does September 2011 start in?

Accepted Answer

1 September 2011 falls in ISO week 35. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Russia in September 2011?

Accepted Answer

The calendar on this page marks every national public holiday of Russia in September 2011 in red, with joint/regional days in amber.

сентябрь 2011