Set the minimum unit to the largest available unit

[BirbEXE]

for example, all of the following (and a few more) should be available from one function, just by inputting a timestamp.

6 seconds
or
11 minutes
or
3 hours
or
2 days
or
1 day

[hugovk]

Please give a mimimal code sample showing the current output, and what you'd like to see instead.