I did it...phew
I wanted to go out this morning but the weather was dreadful so I ended up leaving work early and jogging then. I took the first run too fast, and it was uphill, so the last run was a bit of a struggle but I am managing a reasonably good walking pace between jogging sessions.
Seems almost I possible that I could make 30 mins when 3 is hard, but hey...one week at a time