a while ago at 23:25 server time (HK) I was setting my group summon at 20:30 server time for tomorrow

the mail sent says:

http://imgur.com/a/BBj68 (i cant upload via "image" tool somehow)

but the summon group windows says:

http://imgur.com/a/7M3H9

so basically the setting is on server timer, so is the mail, but the windows is setted on local timer, I know its simple but it sometimes cause a confusion for some people, so if I can give a sugestion, would you guys set the windows on server timer aswell?