OHIP 153 out of first 183 days requirement

[keesio]

I'm aware of the requirement that new immigrants must be in Ontario for at least 153 days out of their first 183 days. I'm curious how they do the calculation. Is it similar to how they calculate the residency requirements for citizenship and PR applicants where say, for example, you leave for a weekend departing on a Friday night and come back on a Sunday night, that is considered 2 days absence since: day of departure + day of return = 1 day?

Thanks