How Can I convert Minutes to Days, hours and Minutes

Dears,
I am working on calculating the time between two transactions and the results by minutes, so I need a formula to convert the results to Days, Hours and Minutes DD HH:MM
Example:
Total number of Minutes 21861 and then Convert it to DD HH:MM will be (15 04:21)
Regards

21861
15 04:21 use custom formatting " d hh:mm "
=A1/60/24 formula

Thanks vogel997