Firmware Version 1.1.3 for the EOS 6D fixes an error where the Date/Time/Zone settings screen appears on the
LCD display after the user has already configured these settings. The
values for the Date/Time settings may reset if the backup functions
which retain those values do not perform properly.
Even if the
camera does not exhibit this phenomenon currently, it may in the future. Canon recommends that you update the EOS 6D firmware to version 1.1.3 as soon as
possible.
EOS 6D firmware 1.1.3 update (Europe)
EOS 6D firmware 1.1.3 update (USA)
EOS 6D firmware 1.1.3 update (Europe)
EOS 6D firmware 1.1.3 update (USA)