My first is in flannel but not in towel my second's in shovel and also in trowel my third is in upshot and utter and u-bolt my fourth is in rifle and also in Northolt my fifth is in twaddle and teaspoon and teddy my sixth is in Helen but never in Reddy my seventh in iron is first in the line my eighth is in red sky a delightful sign my ninth is in toothbrush and taxi and tack my tenth is in yo-yo and yam and in yak just add thirty seconds, by now make it fifty and you've got the time without looking. How nifty!
The big hand is pointing somewhere between the twelve and the one, the little hand is pointing somewhere between the three and the six. So it must be twenty past twelve. or so. ish.