Symptom
You have created a UI rule using the NOW() function, however it is not returning local time.
"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."
Environment
SAP Cloud for Customer
Cause
The rule function NOW() only shows the current time in UTC, no matter what the timezone has been set for the user.
For example: 2022-06-30T00:47:26.818Z
This follows the format defined by the sensible practical standard, ISO 8601. The T separates the date portion from the time-of-day portion and the Z on the end means UTC.
Resolution
This is the standard system behavior.
An alternative option may be to check the SAP Cloud for Customer Customer Influence to submit an idea:
Keywords
Validation Rule, Rule, Adaptation Changes, Rule Editor, NOW, TODAY, Time Zone, Local Time, DateTime, Date , KBA , AP-RC-UIF , C4C UI Framework , AP-RC-UIF-FLX , Page Layout & Key User Configuration , How To
SAP Knowledge Base Article - Public