Best approach for Ionic Duration Input

Hello Forum,

I was wondering if people could share the way that they have setup duration inputs for users. Possible use cases as: reminders in 1 hour and 20 minutes from now, or log amount of time spent on an item.

I ask because the DateTimePicker in ionic only supports time input, so you could never intput 0 hours, 30 minutes. It feels like this was not meant for duration inputs.