Talk:Underworld Tower to Heaven/@comment-2602:304:CE7C:1400:E9F0:2B37:24F3:4E68-20170809185615/@comment-198.48.173.195-20170810021038

I took his question to mean what if he already activated rune time. As long as you still haven't gotten back to the tower screen and get the new rune, you can still delay, but once you already got the rune and activated rune time, it counts down.