If you work in Ontario, you might wonder: How many hours can I legally work in a day? How many breaks am I entitled to? Can my boss schedule me for back-to-back shifts?
Ontario’s Employment Standards Act (ESA) sets out clear rules for working hours to protect employees from being overworked and ensure fair treatment. Whether you’re a full-time employee, part-time worker, student, or new to the workforce, here’s what you need to know.
How Many Hours Can You Work in a Day in Ontario?
Under the ESA, most employees in Ontario can work a maximum of 8 hours per day (or the number of hours in your regular workday if it’s more than 8) and 48 hours per week.
Example:
- If your regular workday is 9 hours (per your contract), you can work that amount without special agreements.
- Employers can ask you to work more hours, but you must agree in writing.
Can You Work More Than 48 Hours a Week?
Yes — but only if:
- You agree in writing, and
- The employer gets approval from the Ontario Ministry of Labour.
Without both, your employer cannot legally require you to exceed 48 hours per week.
Minimum Hours for a Shift
There’s no set “minimum shift length” under Ontario law, but if you’re scheduled to work and sent home early, your employer must pay you for at least 3 hours at your regular pay rate (even if you worked less).
Breaks and Rest Periods
Ontario law says:
- You must get a 30-minute unpaid eating break after every 5 consecutive hours of work.
- This can be split into two 15-minute breaks only if you agree.
- You must have at least 11 consecutive hours free from work each day.
Between shifts, you must get at least 8 hours off, unless the total daily hours are 13 or fewer.
Learn more about the legal working age in Ontario and the laws regarding work breaks.
How Many Days in a Row Can You Work in Ontario?
Generally, you are entitled to at least one day off every week (or two days off every two consecutive weeks).
Can You Work 16 Hours a Day in Ontario?
No — the maximum daily hours are 13 hours (including breaks). Anything more would violate the ESA unless there’s an approved emergency exemption.
Special Rules for Certain Jobs
Some industries — like healthcare, emergency services, and road maintenance — have different rules under the ESA. Always check if special exemptions apply to your field.
Student and Young Worker Hours
If you’re a student under 18:
- During school: You can work up to 28 hours a week.
- During breaks: You can work up to 48 hours a week (but still follow daily limits).
Why This Matters
Knowing your rights helps you:
- Avoid burnout
- Ensure you’re fairly compensated
- Spot when your employer is breaking the law
If you believe your employer is violating Ontario’s working hours laws, you can contact the Ontario Ministry of Labour or speak with an employment lawyer.
In Ontario, the standard limit is 8 hours a day and 48 hours a week, with protections for breaks, rest, and maximum shift lengths. Anything beyond that requires your consent — and often government approval.
