How long does that potion last?
Hi! Here's a guide I wrote for how long Minecraft potions last in approximation with real time. This is for Java edition only, and hopefully will be useful in stuff like fanfiction.
For reference, a full Minecraft day is 20 minutes in-game. That's 10 minutes of daytime, 3 minutes of dawn/dusk, and 7 minutes of night. I will be equating 10 minutes of daytime = 12 hours of a real-life day. I'm calculating this via comparing percentages, so let me know if I have messed up the math. Potion times are from the wiki and instant potions such as healing or harming are left out for obvious reasons.
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20-22 second potions: Potion of Slowness IV; Potion of the Turtle Master I and II; Potion of Poison II; Potion of Regeneration II
Lasts approximately 0.396 hours real-time, or 23 minutes and 46 seconds (for 20 seconds potion length)
40-45 second potions: Potion of Poison; Potion of the Turtle Master +; Potion of Regeneration
Lasts approximately 0.9 hours real-time, or 54 minutes (for 45 seconds potion length)
1.5 minute potions: Potion of Regeneration +; Potion of Swiftness II; Potion of Strength II; Potion of Leaping II; Potion of Slow Falling; Potion of Poison +; Potion of Weakness; Potion of Slowness
Lasts 1.8 hours real-time, or 1 hour and 48 minutes
3 minute potions: Potion of Swiftness; Potion of Fire Resistance; Potion of Night Vision; Potion of Strength; Potion of Leaping; Potion of Water Breathing; Potion of Invisibility
Lasts 3.6 hours real-time, or 3 hours and 36 minutes.
4 minute potions: Potion of Slow Falling +; Potion of Weakness +; Potion of Slowness +
Lasts 4.8 hours real-time, or 4 hours and 48 minutes.
5 minute potions: Potion of Luck
Lasts 6 hours real-time.
8 minute potions: Potion of Swiftness +; Potion of Fire Resistance +; Potion of Night Vision +; Potion of Strength +; Potion of Leaping +; Potion of Water Breathing +; Potion of Invisibility +
Lasts 9.6 hours real-time, or 9 hours and 36 minutes.
Tipped arrows, according to the wiki, last 1/8th the time of their corresponding potion if applicable. Since that might vary, I'm not going to calculate them all here.
Go forth and have fun writing! I wrote this post nearly 2 years ago, drafted it, and forgot about it. I hope it can be of some use for writers.
