"Babin najstariji sin Branko imao je tada 30 godina i bio je dijurnista u ministarstvu spoljnjih poslova i pisao je takodje i u novinama "Iskri". Docnije, 1889 god. kad je obrazovao Risticevo Namesnistvo postao je sekretar istoga."

"... he was temping in the Ministry of / he was temporary staff in the Ministry of ... "

I somehow doubt they were literally paid every day, as it would be the case with a "nadničar" (radnik na dan) working in fields; nowadays the only employee "paid by the day" would be a "temporary staff" or "fixed contract staff" or "un agent temporaire /non titularisé"

Temporary Employees - United States Department of Labor
www.dol.gov › Job Opportunities at DOL › Vacancy Information‎
A temporary appointment is an appointment lasting one year or less, with a specific expiration date. It is appropriate when an agency expects there will be no ...
[https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web...]


dijurnist (lat.) dnevničar, namještenik koji je plaćen po danu rada
[http://www.slavoljubpenkala.hr/index.php?option=com_glossary...]

dijurnist (lat.) - dnevničar (vrsta nižeg činovnika)
from: "Rečnik iz drama Krleže"
[http://www.tvorac-grada.com/forum/viewtopic.php?p=156955&sid...]

dijurnist(a) (lat. diurnus) dnevničar.
[http://lib2.podelise.ru/tw_files2/urls_327/38/d-37941/7z-doc...]

Full text of "Janeza Trdine zbrani spisi" - Internet Archive
Kako sta uživala svoje šestice bivši dijurnist Cvikelj in njega gospa, bivša Capudrovka, ne morem povedati, ker že veliko let ne prebivata na Dolenjskem....
[https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web...]