I got suddenly fired without a warning from my part time job. Is their any law governing this?

Thank you for your question:

You are almost certainly owed either reasonable notice of your termination or pay in lieu thereof. Use our Ontario Severance Pay Calculator (www.severancepaycalculator.com) to find out how much you may be owed, and give us a call at the number below to discuss your situation in more detail. We would be happy to help in any way we can.

Thank you.