A complete day-night cycle in Minecraft lasts 20 real minutes, which is 72 times faster than real-world time. The breakdown of this cycle is as follows: daytime lasts approximately 10 minutes, sunset takes about 1.5 minutes, nighttime lasts around 7 minutes, and sunrise takes another 1.5 minutes. Both the Bedrock and Java editions of Minecraft now adhere to this 20-minute cycle. Players can track time using various methods, such as crafting a clock, observing celestial positions, or using the F3 debug screen in Java Edition. Commands and mods are available to manipulate time in the game.