I am ranking them based on person days governed - multiply the population by the number of the days in power.
- Kim Campbell Fed 3,786,000,000 132 days PC
- Christy Clark BC 2,429,000,000 552 days Lib
- Alison Redford Ab 1,261,000,000 346 days PC
- Rita Johnson BC 715,500,000 217 days Socred
- Kathy Dunderdale Nf 336,000,000 654 days PC
- Catherine Callbeck PEI 149,000,000 1353 days Lib
- Nellie Cournoyea NWT 92,000,000 1469 days na
- Eva Aariak Nu 44,800,000 1404 days na
- Pat Duncan Yk 24,800,000 884 days Lib
- Pauline Marois Que 7,900,000 1 day PQ
In June of 2011 the total was 5.3 billion days today it is 8.8 billion days. The five women currently in power have collectively governed for over 4 billion person days.
Using this measurement, Pauline Marois will quickly rise up the list, she will pass Eva Aariak in a six days and Nellie Cournoyea in 12 days. In just over seven weeks she will pass Kathy Dunderdale. I will update this list again in late November.
Pauline Marios almost doubled the number of Canadians being governed by a female premier.
We had three female first ministers for 132 days in 1993. Since March 14th 2011 we have had three or more female first ministers continually. Given that it seems probable Christy Clark will be premier till May 14th next year, we will have 8 more months of at least four female first ministers in Canada. I do not know how much longer Eva Aariak will be premier of Nunavut.
Eva Aariak will become the longest serving female premier if she lasts till November 23rd.