> 1. Maximize the code context where date/time is represented as a simple count of Unix epoch seconds. Either your values will be different from UNIX timestamp

> 1. Maximize the code context where date/time is represented as a simple count of Unix epoch seconds. Either your values will be different from UNIX timestamp (and you need to write your own conversion functions), or they are not simple count of seconds and will have ambiguities. Neither is not great situation.