Assumes you have a serial console
box:/ # cd system
sed -i 's/ro.product.locale=ru-RU/ro.product.locale=en-GB/g' build.prop
sed -i 's|persist.sys.timezone=Europe/Moscow|persist.sys.timezone=Europe/Paris|g' build.prop
box:/ # cd system
sed -i 's/ro.product.locale=ru-RU/ro.product.locale=en-GB/g' build.prop
sed -i 's|persist.sys.timezone=Europe/Moscow|persist.sys.timezone=Europe/Paris|g' build.prop