Yes, an example of the input and the required output would be useful. If for "timeticks" you mean the number of seconds after some epoch, you can use the date command specifying the input with the -d option and formatting the output at your pleasure:
date -d @1231492552
the number of seconds since epoch must be preceded by @ otherwise the date command is not able to interpret the input correctly. The problem arises if your timeticks refer to an epoch different than the unix epoch (01-01-1970 01:00) so that you have to do some calculation to correct the discrepancy.
Edit: sorry, posted before seeing the reply above.