[rdl]

In Puerto Rico (where I live) there's an even weirder system -- people usually get/expect (and certain classes of employment obligate) a "13th month" check. Pretty common in LaLtAm; exists in some of Southern Europe too.

[gus_massa]

In Argentina we changed the mandatory "13th month" in December to a mandatory "half month" in July and another "half month" in December.

[manuelmoreale]

Some contracts are even getting a 14th one. 13th is fairly common in Italy and it’s usually bundled together with your December one.

[piperswe]

Western Europe as well, it's called a holiday allowance in the Netherlands