Services publics et Approvisionnement Canada
Symbole du gouvernement du Canada

Avis important

L’outil The Canadian Style a été archivé et ne sera plus mis à jour jusqu’à son retrait définitif.

Pour obtenir notre contenu le plus à jour, veuillez consulter Writing Tips Plus, un outil combinant le contenu des outils Writing Tips et The Canadian Style. N’oubliez pas de modifier vos favoris!

Rechercher dans

5.12 Representation of time in ordinary prose and with SI units

Except in descriptive text and in approximations, write the time of day in numerical form:

  • The program will be broadcast at 8:05 p.m.


  • He said that he would call after ten o’clock.

In a scientific or technical context, express precise measurements of elapsed time by means of the internationally recognized symbols of time d for day, h for hour, min for minute and s for second:

  • h 20 min flying time
  • The test run took 1 d 3 h 43 min 09 s precisely.

These symbols should also be used when units of time are expressed with SI units:

  • 16 km/d
  • 16 m/s
  • 10 J/h
  • 60 r/min