By 'here' do you mean in the USA? Here in Europe (Austria) - it is very common to simply state during employment interviews that you wish to work 30-hour weeks

By 'here' do you mean in the USA? Here in Europe (Austria) - it is very common to simply state during employment interviews that you wish to work 30-hour weeks. Its just a part of the negotiation stage and the company can take it or leave it - no questions asked. If you're already signed up for a 40-hour week, well then this is a renegotiation - and you also have to be prepared to take it, or leave it.