It's eleven ... ish. The hours are still given as numbers, but everything else is "five or so", "past four", "almost ten" etc. It's how I'd describe time and I'm British, so it may not fit for others.
So from five to six we'd go through:
five
five ish
five or so
past five
well past five
almost half five
half five
half five ish
half five or so
past half five
getting on for six
almost six
six
This is the version for SDK 1 - for SDK 2 see http://www.mypebblefaces.com/apps/8300/8408/
Add "well past " and "getting on for " - so now the text changes every five minutes.