Number Sequences From The Angels

Hi all and thanks for the posts. i know this thread is a bit old, but my question fits right in here.
it was interesting to read about the numbers and their meanings. But i could not find an answer to what numbers like this mean:
17:17, 16:16, 23:23, 13:11 (=1:11) and why would i check the time again two minutes after that when it shows 13:13?

i write sms messages at 22:22 and receive an answer 23:23
i check the time at 11:11 or 14:14 and so on. always the double version. i keep seeing these numbers and i do not find an answer on this.
There is plenty of info on numbers like 11 or 22 or 33 or 44 but not 14:14 or 18:18, etc.
First i started seeing numbers like 22:22 or 22:33 11:22 but somehow it changed to these other combinations.
Anybody any idea?