A temporary resident must apply to extend their period of authorized stay before it ends. If they have done so, their period of authorized stay as a temporary resident is extended by law until a decision is made. Such a person is considered to have maintained status (previously known as implied status) as a temporary resident during that period.
If a temporary resident applies for renewal of their work or study permit and their permit expires before a decision is made, paragraph 186(u) and section 189 of the Immigration and Refugee Protection Regulations(IRPR) (the right to continue working or studying under the same conditions pending a determination of their application for renewal) apply only as long as the person remains in Canada.
For more information, including travelling outside of Canada on implied status, please visit the IRCC webpage.
