I work for Alberta Health Services but in Edmonton. I put in around 8-30 hrs depending on the week, but they're good about shifts I can't make. Great job for student, since if there's any down time I can study or do something else like surf/calgarypuck. Free coffee and tea, fridges, and everything so it's easy for me to come from school with food. Really friendly people and quiet office. I'm sure it'll be somewhat the same in Calgary but really, give them a try. Especially with the flu clinics coming in they'll need some spare bodies. Might be a little late though but they pay great! Like $16-19