Clock on Lock Screen when security is implented.

Hi guys

I have a Galaxy Ace 2 on o2 in the UK. For what I need it does pretty much everything.

However.... I like to use it as a pocket clock, ie take it out of my pocket, press the button and it tells me the time. Simple eh?! At night I can press the button to be told it's 2.34 in the morning and I'm having problems sleeping.

But... if you have invoked security, PIN accessed, pressing the home button displays the number pad but no big easy to read time. (True it's displayed very small in top right corner of the notification bar but that would mean having to put my specs on to read!)

Is there a way that within the settings Time can be displayed as well as having a secure phone?

Thanks in advance