Strange time shift problem

I have strange shift on my vision clients. They have +1 hour to the time displayed on the screen. Also the trends are shifted with 1 hour. I also have time dependant reports, which also not working as expected. Here are the system tags for the times for the client and gateway:

As you can see the time is about +1 hour shifted on the client from the gatewaw. The gateway has no internet connection and cannot use time auto update.

The progect confituration for the timezone behavior:

Here is the system information for the gateway:


    Process Id            3924
    Operating System      Windows 10 | amd64
    Java Version          11.0.7+10-LTS
    Local Time            7:10:32 a.m.
    Available Disk Space  363gb / 465gb
    Detected NICs


    Alarm Pipelines       0 / 10 active
    Modules               10 installed
    Performance           3% CPU | 817mb
    Redundancy            Not configured
    Reports               7 scheduled
    Tags                  11,844 tags

The clients are on different timezones and the problem is the same on every client.

The gateway timezone is reported by powershell as:

PS> Get-Timezone
Id                         : Mountain Standard Time
DisplayName                : (UTC-07:00) Mountain Time (US & Canada)
StandardName               : Mountain Standard Time
DaylightName               : Mountain Standard Time
BaseUtcOffset              : -07:00:00
SupportsDaylightSavingTime : False

The timezone on the gateway was misconfigured with SupportsDaylightSavingTime to True at the beginning, but was changed to the correct daylight saving setting. The local clients are correctly configured from the beginning.

Is there a way to fix this problem?

Thank you.

Has the gateway been restarted since making changes to time?

Yes. Several times by gwcmd -r and once by restarting the OS.