Ascension Day

You find out things when working for a foreign-owned company.

Although the holiday is not observed in the United States, tomorrow (Thursday, June 2) is Ascension Day (the "ascender" being Jesus Christ). timeanddate.com lists the countries that observe Ascension Day as a public holiday:

Austria.
Belgium.
Denmark.
Finland.
France.
Germany.
Indonesia.
Luxembourg.
The Netherlands.
Norway.
Sweden.
Vanuatu.

And yes, Indonesia is on that list. It's odd that a predominantly Muslim country such as Indonesia celebrates Ascension Day, while a predominantly Christian country such as the United States does not.

timeanddate.com also explains how the day is celebrated:

Ascension Day is sometimes called Father’s Day in Germany because many Protestant men have herrenpartien “outings” on this day. In Sweden many people go out to the woods at 3am or 4am to hear the birds at sunrise. It is good luck if a cuckoo is heard from the east or west. These jaunts are called gökotta, or “early cuckoo morning”.

I know some people in Sweden, so I hope that they hear a lot of cuckoos tomorrow.