Question 1

How many days does September 1957 have?

Accepted Answer

September 1957 has 30 days. It starts on Sunday and ends on Monday.

Question 2

What ISO week does September 1957 start in?

Accepted Answer

1 September 1957 falls in ISO week 35. Weeks run Monday–Sunday per ISO 8601.

Question 3

Where can I see the public holidays of Hong Kong in September 1957?

Accepted Answer

The calendar on this page marks every national public holiday of Hong Kong in September 1957 in red, with joint/regional days in amber.

9月 1957