To whet your appetite and keep your writing fingers limber, take a good look at the photo, or let a prompt settle in your mind. Set a timer for a reasonable amount of time, be that five, fifteen, or thirty minutes. Then start writing.
Create your own Time Lord character and write about one of his or her adventures.
Write about a moment when time seemed to speed up or slow down.
Make a list of your favorite fifteen ways to save time and energy.