Question 1

How many days does September 2015 have?

Accepted Answer

September 2015 has 30 days. It starts on Tuesday and ends on Wednesday.

Question 2

What ISO week does September 2015 start in?

Accepted Answer

1 September 2015 falls in ISO week 36. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Russia in September 2015?

Accepted Answer

The calendar on this page marks every national public holiday of Russia in September 2015 in red, with joint/regional days in amber.

сентябрь 2015