Timezone being incorrect in ingame annoucements

I've frequently encountered an issue wherein the timezone in the annoucements is being displayed in PDT instead of UTC+1/GMT.

An example for this issue is the following:

[13:30]At 5:00 a.m. (PDT), we will be logging all characters out from the game. We ask you to please log out before we begin the process. More details: http://sqex.to/FCn

I'm not really sure what information I should provide due to the nature of this issue being unclear. If more information is needed (dxdiag, etc.), please let me know.

This issue has been occuring even before Stormblood launch but I wasn't really bothered by it due to it being smaller annoucements but currently due to the logout process it's gotten to be more of an issue.

Thank you for your help in advance!

Best regards,

Nuraeil

Frequency: Every ingame annoucement with timezone relation
World name: Cerberus
Character name: Nuraeil Tsuji

Connection Specs
- LAN, Unitymedia (200/10)
- Horzion Box

System Specs
- Windows 10, 64-bit

/edit: I'm not using a proxy.