time is running short, time is running out, running out of time

time is running short, time is running out, running out of time はどれも同じ意味ですが、古代ギリシャの法廷で使われた水時計 kepsydra に由来します。注意したいのは I'm running out of time. time is running out for me. です。18:47 when all the water was gone, your time was up. it's the origin of the phrase 'running out of time.'

Ancient Discoveries Series 1 Episode 1: Ancient Computer - The Antikythera Mechanism
https://www.youtube.com/watch?v=3LQDky4dw1I  3:13 time is running short. ギリシャは待ったなしだ。
Greek Crisis: A country on the brink of default
https://www.youtube.com/watch?v=52aEvsfRpBo  0:47 time is running out.
Marquette Seniors Tap Into Social Media To Help In Job Search
https://www.youtube.com/watch?v=1JTBqOtLlM0  0:17 time is very much running out for the American government.
US deft default looks inevitable
https://www.youtube.com/watch?v=VaXB3jV5rEo  0:34 time is running out.
As Debt Deadline Draws Close, Parties Dig in, Markets Prepare