Examples of Part-Time Work and Consultancy in Different Countries
P.S. Dinghra has asked pertinent questions and also has given you answers to different scenarios. I support his response with examples from my experience.
When working in India for a defense establishment, the organization encouraged staff to teach on part-time courses after work, on Diploma courses run by them. Additionally, Indian Institutes of Management and other research establishments allow their staff to do consultancy work, and the proceeds from that are shared between the staff member and the institute.
In the UK, while working in industry, I have done voluntary work as an advisor to the Young Enterprise Scheme. Most of the advisors were from the industry. Similarly, I have also taught on part-time courses in the evening at a college. As there was no stipulation that I could not work and as the college was not a competitor, I had no problem. Even in the UK, academic staff can engage in consultancy work (with the permission of the employer), and the proceeds are shared. Academics are encouraged to work as external examiners for other institutions and become members of assessment panels, etc.
Have a lovely day.
Regards,
Simhan
Learning & Teaching Fellow (Retd) The University of Bolton, UK