I see a stopwatch with its swiftly moving hands, but this one was moving in reverse.
I believe this means that time is limited. There’s something for you to do and enough time to complete it, but only if it is done promptly. Perhaps some time has been squandered on unproductive things, but the time has come to knuckle down and focus on the task because the fast-moving hands are counting down. Once they get to zero they will stop. The opportunity to complete the task will have expired.