I use utf-8/utf8_general_ci and choose
Svenska-utf8 as language in MODx. (EVO!!)
Using the wrong "Svenska", without the "utf8" can cause "utf-8 boom" behaviours
and data loss when saving(!).
On a DB using collation utf8_swedish_ci I had to encode/decode utf-8 in SQL statements and experienced all kinds
of problems with åäö.
Then I start snippets and code with:
setlocale(LC_ALL, 'sv_SE');
date_default_timezone_set('Europe/Stockholm');
And I use the common trans table in TransAlias plugin (EVO!!): Å, Ä as A and Ö as O.
(But åäö seems to work in browsers nowadays...)
Other than that... Or calendar weekdays start on Monday.
A date like this 04/05/10; reads: day/month/year in Sweden. And instead of
writing Feb 10, we would write 10 Feb. // 2010-12-31 is universal an works.
We use Military time i.e. 22.00 for 10 pm.
Swedish (shared) hosting SUCKS. Recommend your client UK or US hosting!