As your link points out, in Dutch this is also known as "komkommertijd" ("cucumber time"), and in German as "Sauregurkenzeit", ("pickled cucumber time").
The funny thing is that apparently "cucumber time" also existed as an expression in English for a while in the 18th century. One suggested etymological origin for the Dutch "komkommertijd" was as a loan work from the English around the same period, except ttat it survived after the English stopped using it. According to some sources cited on the Dutch wiki page the expression was mainly used by German tailors in London.
alt Hacker News
As your link points out, in Dutch this is also known as "komkommertijd" ("cucumber time"), and in German as "Sauregurkenzeit", ("pickled cucumber time").
The funny thing is that apparently "cucumber time" also existed as an expression in English for a while in the 18th century. One suggested etymological origin for the Dutch "komkommertijd" was as a loan work from the English around the same period, except ttat it survived after the English stopped using it. According to some sources cited on the Dutch wiki page the expression was mainly used by German tailors in London.
[0] https://nl.wikipedia.org/wiki/Komkommertijd