Hai
Ralph,
Thank
you for using Syncfusion products.
We
have tried to reproduce the reported issue with your code in sample but we are
unable to reproduce it with time picker control using 12.2.0.36 version.
After
selecting the hour or minute interval value on time picker, ‘Minutes Interval’
and ‘hour Interval’ steps in increment are working fine with arrow keys and
with mouse scroll.
We
have prepared the sample in time picker control to depict this scenario and the
sample can be downloaded from the following location.
Custom
Sample
Regards,
Sasikala
Nagarajan