I believe there may be a bug on “datetime” field
I’m using Joomla! 3.5.1 & Community Builder 2.0.14

What I want to do is set the date to display month, day, and 2016 year only, and time to be hour/minute, without seconds

in Parameters > Display > Custom
when changing Custom Date Format or Custom Time Format and save, it Successfully saved Field but changes does not apply in the user’s profile.
Example:
Date y-m-d change to m-d-y changes does not apply in the user profile.
Time H:i:s change to H:i or H:M changes does not apply in the user profile.

In Parameters > Validation
I want to display the 2016 year only, when it set:
Minimum Year 2016
Maximum Year 2016
OR
Minimum Year +0
Maximum Year +0

It display 2016 and 2017 at the user profile (adding 2017)

Displaying M-D-Y H-M-S doesn’t change at the user end no matter what changes in the field setting

Thank you