user21190: if I observe the 8 precepts today,fast in the afternoon and eat at 12am the next day, is it considered a sin?

user21201: No. It's also not a cheat, when one resolves to keep the Uposatha-precepts for one day, good householder. Sadhu. Nevertheless maybe taking the Buddhas further encouragements into consideration: Sakka Sutta: To the Sakyans (on the Uposatha)
(btw. day starts with sun rise, and eating at right time means from sun rise till sun at zenith, lesser a matter of time by clock as this could be differently.)

21190: <p>if I observe the 8 precepts today,fast in the afternoon and eat at 12am the next day, is it considered a sin?</p>
 21201: <p>No. It's also not a cheat, when one resolves to keep the Uposatha-precepts for one day, good householder. Sadhu. Nevertheless maybe taking the Buddhas further encouragements into consideration: <a href="http://zugangzureinsicht.org/html/tipitaka/an/an10/an10.046.than_en.html" rel="nofollow noreferrer">Sakka Sutta: To the Sakyans (on the Uposatha)</a></p>
<p>(btw. day starts with sun rise, and eating at right time means from sun rise till sun at zenith, lesser a matter of time by clock as this could be differently.)</p>
