[User details] Save button is not enabled when changing time in datetime fields

[miskopo]

In User details, when modifying just the time part of the datetime fields (e.g. Kerberos principal expiration (UTC)), the Save button doesn't enable.

[miskopo]

I believe the issue related to setting time in krb5 is related to this one. Basically, each request to change sends the time set to hard-coded value, but I was unable to figure out where this value is coming from.

1. Original value
2. Change to actual request:

   {
   "method": "user_mod",
   "params": [
   [
     "armadillo"
   ],
   {
     "version": "2.251",
     "krbprincipalexpiration": "20240716220016Z"
   }
   ]
   }

   which corresponds to time 00:00, however the date is skewed by 1 (the value is correct after the reload)

3. Change to actual request:

   {
   "method": "user_mod",
   "params": [
   [
     "armadillo"
   ],
   {
     "version": "2.251",
     "krbprincipalexpiration": "20240719220016Z"
   }
   ]
   }

   again, date moved by one day and time set to 00:00

My investigation led me to several possible culprits.

• line 213 of src/utils/utils.tsx - there is a discrepancy in behaviour of setUTCHours nad setHours.
• src/components/Form/DateTimeSelector.tsx - onTimeChange is not triggering/processing the time correctly

[miskopo]

Fixed by https://github.com/freeipa/freeipa-webui/pull/464