As already stated by Neil, it is possible to select UTC as timezone for every language/country, if you use the expert install option or select debconf priority "medium" from the installer's main menu.
This is also documented in the installation guide in https://d-i.debian.org/manual/en.amd64/ch06s03.html#clock-setup Thus I'm closing this bug. Holger -- Holger Wansing <hwans...@mailbox.org> PGP-Fingerprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076
