Convert duration d:hh:mm:ss to hours in google docs

by Rubin|Published March 23, 2025

I want to convert a cell in google sheets where I have a duration in days:hours:minutes:seconds which I want to convert to hours.

I saw the following: How to convert a duration into a number of hours in Google Spreadsheets? but that does not work for me as I also do have the amount of days?