Did you by any chance get this resolved? I have the same issue with both firmware version 1.6 (as supplied) and 1.8 which I found on the SMOK site. SMOK technical support have so far ignored my emails and I'm getting nowhere. OK so it's not the end of the world that the clock doesn't work, after all it's a mod and not a watch, but still the appalling response from SMOK leaves a bitter taste... The 1.8 update ironically says 'date/time' fix... Smoktech Firmware C.