I'm assuming that you're still using CC3+. If you've switched to another program, let me know, and I'll try to give you an answer that fits.
If you've installed the Dundjinni Archives:
1) Go into DD3 mode
2) Click the icon CSUAC/DA Modern (the icon with the airplane)
3) Scroll down deep into the symbol list and you'll find clocks there.
If you have SS3, there also are clocks, but I don't remember what icons they're attached to. However you'll find them in:
Photorealistic:
@\Symbols\Modern\SS3\Bitmap B\Wall Features
and, non-photorealistic:
@\Symbols\Modern\SS3\Bitmap A\Wall Features
Happy Sunday!
Servus,