/time resets local difficulty in realms

When you use the /time command (which I set up in a command block) on minecraft realms, it resets the local difficulty to zero. This is quite a pain as just before I created this command we were on day 52 on hard and more than half way to maximum difficulty.

Obviously I would have not made this command had I known this would have happened. I think a good solution would be to allow access to change local difficulty via a command also.