difference - availability and available in a sentence

I am answering someone at work who asked me what availability do I have over the next few weeks, in order to see if I could be assigned a task. Which is the following two forms is correct and why?

  • I may have up to 20% availability in the coming weeks.
  • I may be available 20% of the time in the coming weeks.

Thanks for your help.


Both are grammatically correct.

The first has an air of "business-speak" about it, sounding more convoluted than it needs to be. The second is simpler and clearer, which I would personally consider to be a good thing.