Many thanks for your answer! I didn't realise you could change to NM, but now i definitely will. I'm so used to convert the units in my head and offcourse one can not use Windy for navigation. But it's definitively easier to have it in NM automatically. Thanks!

Hi,
I see you are using the Route planner on the mobile app.
To display the time at any point in the forecast table, you need to tap on the table where you want to get the time / date and the distance since the start of navigation.

By the way, it seems strange to me that you are using km at sea instead of NM (nautical miles). You can switch from km to NM by clicking on the little dotted line. Same for m/s if you want to use knots for the wind speed.