There's something fun about just typing in a large constant (and it's fun when you start to recognize them by heart), but you're probably better off just making

There's something fun about just typing in a large constant (and it's fun when you start to recognize them by heart), but you're probably better off just making it obvious by including a little arithmetic: 24 * 60 * 60. As a nice-side effect, harder to typo. :)