Controls like the Date Range have some in-built knowledge of the current time. (It shows an small arrow at current time)
It would be nice to have all controls that use time to have an option to convert from Gateway Timezone (or configured Database Timezone) to Client Timezone (or arbitrary timezone with Client being default).
We configure all of our servers to UTC to avoid general issues with timezones and daylight saving time but users of the HMI don’t generally use it.
I have python script to manually fix times based on client timezone but it doesn’t work with everything (like the Date Range now arrow) and can be a nuisance like with the Alarms Summary control where we might need to manipulate the dataset to have correct times.