Yes, the numbers being the same as your birthday is a good reason for you to be sensitized to them. It seems the more a person is sensitized to a number, the more they're seen. (Provided the numbers are available to be seen, of course.)

In your case, the 11:27 on the clock happens twice a day. Other numbers come on the clock, too, but you see them less often because you're not so sensitized to them.

Unrelated but may be of interest:

Looking at your numerology chart, I see your personal year number for next year is 9. And that your life period cycle is changing next year to the number 9 (and will remain 9 for 27 years).

Because the number 9 is your heart's desire number and your life path is providing additional similar energy, next year you may achieve some or most of what you really desire. And most likely even more during the following 26 years.