@Marie Any news on this. We work in week numbers for a lot of tasks and the lack of this implementation, and the fact that it is not possible to view the calendar by weeks or days, is causing us to need to use Spreadsheets for certain things.
Thanks
Tom
This is really frustrating, such a feature should be standard implementation.
Add calendar week numbers please!
Yes, please, please, please can we have this?
You would think that week numbers are a basic part of a calender. Wondering why this is not implemented yet!?
Did Asana ever implement this?
Not to date, no. We await further developments!
Hey - We need this for our Logistic team! Please implement as hack or so to speed things up?
Please add this feature! its easy to implement. In 4 years no reaction to this feature request? At least give some info why you would or wouldn’t add this feature.
An appropriate number of upvotes ^ 
Fair answer But still we need it 
Keep upvoting this request
Big companies deal in week numbers Asana!
It’s both really annoying and literally pain-inducing to keep switching between two calendars (one that’s not on Asana but with week numbers on) like a tennis game while adjusting time lines. Please, add the numbers and make it stop. I know you don’t mean to, but you’re hurting us all.
Confirm - week numbers are a must for quick planning and mandatory when working in the Nordics.
Yes, please add week numbers. I really need it for planning within our company.
Surprised to see that this, basic, function still isn’t implemented.
Please add week numbers in the calender.
Another voice to push this back up to the surface. Currently viewing months just an empty vague approximation of when things are happening in it makes me very frustrated every single time.
Another request for this.
It would still be really useful, thanks for adding your voices!
Week numbers in the date pickers would be great to have!
Another request here for week numbers!