[ldolse]

Calibre definitely does not default to Times New Roman. Calibre defaults to doing nothing at all around fonts. If the document itself does not specify fonts then I believe ePub (and html in general) default to sans-serif.

You can specify a preferred font/font family during conversion by using the extra css configuration under look and feel - just add the css you like to specify your preferred font. Note that Calibre doesn't support inserting a font during conversion, if you choose a font that's not embedded in your epub or included in your reader you'll need to take care of putting that font somewhere yourself.


If you're referring to Calibre's built in viewer, I don't believe it defaults to Times either, but regardless you can go to it's preferences (expand the viewer toolbar to find the icon), and change to your personal preference.