hi again - I wish I could tell you that your plan to claim all hours as part-time was OK, because it does make sense. But, from the OP 25:
"―Full-time work‖ is defined in R87.1(3)(a) as requiring at least 37.5 hours of work per week. For the Canadian Experience Class full-time equivalence, or 1,950 hours of paid employment over a period at least of 12 months will also be considered.
The full-time work experience requirement may be met by the equivalent in part-time paid work experience, e.g. more than one part-time job held simultaneously or one or more part-time jobs held over the equivalent of one year of full-time work. Experience can be calculated by adding up the number of weeks of full-time work, i.e. 37.5 hours per week in one job or a total of at least 37.5 hours per week in more than one job, in one or more of the NOC categories.Experience can be calculated by adding up the number of weeks of full-time work, i.e. 37.5 hours per week in one job or a total of at least 37.5 hours per week in more than one job, in one or more of the NOC categories."
http://www.cic.gc.ca/english/resources/manuals/op/op25-eng.pdfReasonable people can (and probably will) disagree about what that means, but I think you have to look at your hours on a week-by-week basis, count the number of weeks of "full-time" (at least 37.5 hours) and number of weeks of "part-time" (less than 37.5 weeks). Then, for the part-time weeks, add up all the hours and divide by 37.5, and you have the number of weeks of full-time equivalent work. Add those weeks to the number of full-time weeks - when you have 52 weeks, you're good to go (assuming you're applying as a post-grad).
You don't exactly say why this is causing so much anxiety - yes, it's a pain in the neck, but if you have the records, it's not difficult.