When I read the Danish description for the Garmin Coach 5 km program, I was baffled to see that it was aimed at people who run 5 km/h or slower.
That is equal to 12:00 minute per km or 19:18 minute per mile. Slower than most people's walking speed.
I then switched Garmin Connect to English language and saw this text which made much more sense:
"The plan is intended for beginner or intermediate runners who run/walk or run at an 8:00 minute per mile pace or slower."
That is roughly equal to 5 minute per km.
So apparently, someone at Garmin thinks that 5 minute per km is the same as 5 km/h.