You can 通过city posted的centralized enrolment 网站 AND 直接去和day care 联系。
After you register, you can call the daycare (613-823-8244) often to check the status.
My daughter waited 2 years to get into the preschool program (2.5 years - 4 years). If you want to send your kid to toddler program (18 months - 2.5 years), it will take less time.
It is better to register early. Good luck!