For BetterClocks to work, all you'll need is an ordinary clock.
- To quickly check the time of the world you're in, right click with the clock in your hand.
- You can also hover over the clock in your inventory and other containers to see the time constantly updating.
- You can view the time in both 12-hour and 24-hour mode.
Here is a Little Plugin review someone made for this plugin.
- Stacking clocks is problematic because the world time is constantly updating, and the game does not support stacking items with different lore.