Final answer:
Devanshi has the right to request a change in her work schedule under the ESA after working for at least three months.
Step-by-step explanation:
Under the Employment Standards Act (ESA) in Ontario, Devenish has the right to request a change in her work schedule after she has worked for the employer for at least three months. This means that once she has completed three months of work in her evening course, she can request to change her hours of work so that she has Wednesday evenings off. Therefore, once she has completed three months of employment, she is entitled to request a modification in her hours, such as having Wednesday evenings off, to better align with her academic commitments. This provision emphasizes the importance of work-life balance and supports employees in managing their professional and educational responsibilities effectively.