This event was planned for 1 hour and 15 minutes. In the activity feed on the Zwift website it says it was planned for 1 hour and 900 minutes. (900 seconds = 15 minutes)
That’s better than the event I did yesterday that was spec’d at 35-37 wkg!!
Where do you see that Paul?
It’s definitely set up for 1h15 (I get your point about seconds)
Go to my.zwift.com and open any activity where the planned duration is some value that’s not expressed in whole hours. Scroll down to the last section right before notes/comments. A 90 minute group ride will show 1 h 1800 min