Is there no way of doing real-time missions in career mode? I passed my IFR and night certs, is this a bug?

Thanks to anyone who knows. I've tried the Zulu hotkey thing, but that just gives me either snow, or night-time. You'd think as real-time passed IRL, the missions would appear and disappear, depending on what time the missions were set at. Currently all my missions seem to be set in clear skies, between 11am and 3pm, regardless of where I am in the world.

Thanks.