From what I’ve understood in NL, the limit is on
all employers simultaneously. So if you work two jobs, even if each job is within the limits, if
both jobs together exceed the limits,
both employers are liable.
> Under the Arbeidstijdenwet (Law on Working Hours), you must inform all your employers about your working hours. Your employer is liable for contraventions of the Arbeidstijdenwet. If you contravene, your employer may be fined. Even if he is not aware of your second job. [1]
Curiously though, it appears there are a number of cases in which the law doesn’t apply: for employees who earn 3x minimum wage or more, professional sporters, researchers, theatrical professionals, medical professionals, military personnel, summer camp guides, and volunteers. [2]
Disclaimer: not a lawyer.
[1] translated from https://www.arag.nl/werk-en-inkomen/arbeidscontract/twee-ban...
[2] https://www.rijksoverheid.nl/onderwerpen/werktijden/vraag-en...