Originally Posted by Meson
Check out the manpage for time, there a lot of built in formatting options.
That would be irrelevant, as he said, he's using the busybox version of time. In any case he would need to look at the busybox man page, which he probably did already.
But at least in my version of busybox, sed, awk and grep do exist. I am not a master of busybox, but with these you should be able to do almost anything.