keberoxu wrote: I thought this came from the guilds system.

I thought so too, probably the Hansa.

I was sceptical about the connection between 'journey' and 'day' but this
Apprentice, Journeyman, and Master: The Medieval Guild
suggests there is a common root:

An original meaning of the word “journey” was “a day” and a Journeyman was someone who performed work for a day and then moved on, as it were.

And I'm curious about most recent Guest's phrase "during the journey of the sun". Is it a literal translation of some Spanish idiom? A jornaleros could just be a 'day labourer'.