Phrase-Request – Can ‘The Train Departs at 16 Past Every Hour’ be Said?

"How to be a good woman" seems fine, but for some reason it hurts my ear (though I'm not a native speaker). In addition to Novice's answer, I would like to just point out two more things:

• man can mean not only "a male human", but also "human" in general
• a good person is a great phrase that can be used for anyone.

"I'll be there in an hour" denotes arrival in one hour from the time the words are said. "An hour" is also generally used to be a bit vague, whereas "I'll be there in one hour" is generally used to be more specific. Either way, the clock starts from the time it's stated.

"I'll be there one hour later" implies that it will be later than something, i.e. one hour later than already agreed. If you'd agreed to meet at 15:00, this means you'll be arriving at 16:00 instead. You could say "I'll be an hour late" to convey a similar meaning.