Date and Time located in which PHP file?

[GateKeeper_]

Where is date and time located?

Which .php file do I need to edit.

I'm trying to make "Days Ago" to "days ago" I don't like caps.

[kh99]

It's a phrase - use "Search in Phrases" to search for Days Ago.

[GateKeeper_]

Thanks how to add detail time to external.php? Seems like detail time settings do not apply to external.php