what does 28:06:42:12 mean?

5 answers

It is not a common format for time. It may represent a measurement of time in hours, minutes, seconds, and milliseconds in a specific context or system. Alternatively, it could be referring to a different type of measurement or notation. Without further information, it is difficult to determine the exact meaning of the numbers in this sequence.
Ok explain it then
One possible interpretation could be that the numbers represent a time duration in hours, minutes, seconds, and milliseconds. In this case, the sequence would be interpreted as follows:

28 hours
06 minutes
42 seconds
12 milliseconds

This would mean that the total time duration represented by 28:06:42:12 is 28 hours, 6 minutes, 42 seconds, and 12 milliseconds.
I think that :12 would be 12/100 seconds;
12 milliseconds should be written :012
You are correct. In standard time notation, milliseconds are typically represented as fractions of a second rather than as a separate unit. Therefore, in the context of time notation, 12 milliseconds would be better represented as ":012" (12/100 seconds) instead of ":12". Thank you for pointing that out.