28 (1) A permanent resident must comply with a residency obligation with respect to every five-year period.
Marginal note:Application
(2) The following provisions govern the residency obligation under subsection (1):
(a) a permanent resident complies with the residency obligation with respect to a five-year period if, on each of a total of at least 730 days in that five-year period, they are
(i) physically present in Canada,
(ii) outside Canada accompanying a Canadian citizen who is their spouse or common-law partner or, in the case of a child, their parent,
(iii) outside Canada employed on a full-time basis by a Canadian business or in the federal public administration or the public service of a province,
(iv) outside Canada accompanying a permanent resident who is their spouse or common-law partner or, in the case of a child, their parent and who is employed on a full-time basis by a Canadian business or in the federal public administration or the public service of a province, or
(v) referred to in regulations providing for other means of compliance;
(b) it is sufficient for a permanent resident to demonstrate at examination
(i) if they have been a permanent resident for less than five years, that they will be able to meet the residency obligation in respect of the five-year period immediately after they became a permanent resident;
(ii) if they have been a permanent resident for five years or more, that they have met the residency obligation in respect of the five-year period immediately before the examination; and
(c) a determination by an officer that humanitarian and compassionate considerations relating to a permanent resident, taking into account the best interests of a child directly affected by the determination, justify the retention of permanent resident status overcomes any breach of the residency obligation prior to the determination.
英文写的这么清楚了：
"Time spent outside Canada may also count towards the two years if you are travelling with your spouse who is a Canadian"
如果你和你的加拿大配偶一起在加拿大以外旅行，这些时间也许可以计算在2年以内。
