List of joint premiers of the Province of Canada by time in office

This is a list of joint premiers of the Province of Canada in order of time served in office as joint premier, both as premier and as deputy. This list counts time during an election campaign as belonging to the preceding premier. When adding together days in non-consecutive terms, a month is taken to mean 30 days.

1. Sir John A. Macdonald: 9 years, 0 months, 27 days
2. William Draper: 5 years, 0 months, 25 days
3. Robert Baldwin: 4 years, 9 months, 18 days
4. Sir Louis-Hippolyte Lafontaine: 4 years, 9 months, 18 days
5. Sir George-Étienne Cartier: 4 years, 5 months, 25 days
6. Sir Étienne-Paschal Taché: 3 years, 11 months, 30 days
7. Augustin-Norbert Morin: 3 years, 2 months, 30 days
8. Sir Francis Hincks: 2 years, 11 months, 14 days
9. Denis-Benjamin Viger: 2 years, 6 months, 5 days
10. John Sandfield Macdonald: 2 years, 0 months, 6 days
11. Sir Narcisse-Fortunat Belleau: 1 year, 11 months
12. Denis-Benjamin Papineau: 1 year, 8 months, 23 days
13. Sir Allan Napier MacNab: 1 year, 8 months, 13 days
14. Antoine-Aimé Dorion: 1 year, 0 months, 19 days
15. Louis-Victor Sicotte: 11 months, 21 days
16. Samuel Harrison: 11 months, 7 days
17. Henry Sherwood: 9 months, 12 days
18. Charles Richard Ogden: 8 months, 2 days
19. George Brown: 4 days