Each week, the Sabbath comes around. The Sabbath isn't just for 8 hours, 12 hours, or even 24 hours. It's actually 25 hours long. But why is the Sabbath 25 hours long?
The Sabbath is a day of rest. Jewish days go from evening to evening. (So for today, it is sundown on June ___ to sundown on June ___).
The internet gives several reasons for a 25 hour Sabbath.
1) 25 hours gives more security in knowing you have definitely rested for the Sabbath.
2) There is a tradition to add a little more to sacred times, from the secular time, to remind us of the holidays preciousness.
3) It's important to make the Sabbath a priority.
You can read more on the Sabbath on these site articles: Article 1 and Article 2
Do you keep a Sabbath day of rest?
What are the component parts of your Sabbath?