Insert /current time

Hello,

I have assigned an action Insert / type / paste for current time. HH:mm with key sequence. C and T. Only problem is whenever I type a word containing C and T the action gets triggered.

is there away I could still use these two letters without executing the action when I type a word containing these two letters?

with Textexpander containing these letters doesnt execute the action. Im trying to get rid of TextExpander.

Thanks.