Knowledge Base General FAQ How long does it take to complete the WHMIS training? Article sections How long does it take to complete the WHMIS training? The average time to complete the WHMIS training is about 60 minutes. This can vary significantly due to several factors. Did this article answer your question? Related Articles Where can I find a receipt for my purchase How long before I can start my course? How long do I have to complete a course? Do I need high-speed internet access to take the training? Do I have to finish the training in one session?