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How long is a typical day in Dungeons & Dragons in terms of time in our real world? I'm using the 3.5 player's handbook, and I know a round lasts 6 seconds.

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closed as unclear what you're asking by SevenSidedDie Nov 8 '18 at 2:20

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • \$\begingroup\$ Hello and welcome! You can take the tour for a quick site intro. Just to clarify, you are asking for the relation between in-game time and real world time, specifically, "1 day in-game = how long in the real world?". Is this reading correct? \$\endgroup\$ – Sdjz Nov 7 '18 at 12:40
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    \$\begingroup\$ This question is unclear - do you expect an answer other than “a day?’ Are you just looking for someone to do the math for you to tell you how many 6 second rounds can fit in 24 hours? In any event it sounds like you have some unstated real question you are trying to use this to answer - why don’t you explain why you’re asking this and I suspect we can help you a lot better with whatever it is you’re trying to do. \$\endgroup\$ – mxyzplk Nov 7 '18 at 12:54
  • \$\begingroup\$ You may also be interested in this question. \$\endgroup\$ – Hey I Can Chan Nov 7 '18 at 14:15
  • \$\begingroup\$ Sdjz Yeah, I'm wondering how long an actual day is on Dungeons & Dragons. According to the comments I've gotten, it sounds like it's quite variable. \$\endgroup\$ – Nathan Diniz Nov 7 '18 at 20:49
  • \$\begingroup\$ How long a day is, or how long a day takes to play? There have been answers for each interpretation already, which means readers don’t actually know which one your question is asking about. \$\endgroup\$ – SevenSidedDie Nov 8 '18 at 2:20
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One day is 24 hours in-world, but an entirely arbitrary amount of time in the real world.

Player's Handbook v3.5, p. 146:

Complete bed rest restores 2 points per day (24 hours) for each affected ability score.

The words "day" and "hour" mean the same thing as they do in our normal world.

However, when playing D&D, of course, the DM can skip over multiple days with a single sentence, or a single 6-second combat round may take an hour of real-time to play, so this definition is only really important for in-world things like spell durations.

Time only passes in-game as the rules and DM narrate it to do so, and real-world time doesn't map to in-game time in any fixed fashion. For example, in-game time can essentially pause between game sessions. See this quote from the Dungeon Masters' Guide, p. 15:

It can be frustrating to DM and players alike that while in the game the characters continue what they were just doing, in real life the players have lived perhaps several days of real time between then and now.

In one D&D 3.5 game I played, a player had their character take a year of "downtime" to craft magic items. This took only a few minutes of real-world time. In that same campaign, we took a full hour to run one combat round which our characters would have experienced as an approximately six seconds, and once we paused a large battle at the end of a session so that while not even six seconds passed for our characters, a full week went by for our players.

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    \$\begingroup\$ Is it worth mentioning that that parenthetical is possibly the core rules' sole instance of equating 1 day to 24 hours? Also, feel free to incorporate this: The Dungeon Master's Guide on the Material Plane says that the Material Plane "is the one most familiar to characters and is usually the 'home base' for a standard D&D campaign. The Material Plane tends to be the most Earthlike of all planes and operates under the same set of natural laws that our own real world does" (147). \$\endgroup\$ – Hey I Can Chan Nov 7 '18 at 14:14
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Basing myself off a concept explained in "Nobilis", I think you made a small mistake in your approach.

When GMing, there are two types of "time":

"In character time": this is combat. Where time needs to be precisely calculated so you can know what happens when (ie: it's kinda tough to not track time if people use stuff like grenades, readied actions, etc. You need to know what happens first and in which order, so time is crucial)

"Out of character time": this is everything else, from traveling to sleeping. In these situations, you shouldn't focus too much on time passing, but rather on the actions everyone does. How boring would an RPG be if people needed to wait (travel time/6s per round) when travelling? You can just abstract that whole time.

Now if you want the math as to how many rounds in a day... I mean 86400 seconds in a day / 6 seconds per round = 14400 rounds. But you truly shouldn't be that pedantic about time outside of combat/time critical situations

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D&D is a story. Passage of time in a story doesn’t correlate to time you spend reading it. Combat rounds often can take an hour IRL but are six seconds of time in the story.

A day in D&D can take multiple sessions (e.g. in a dungeon crawl), or go by in a second (“you sail for two weeks and reach Waterdeep”) depending on what’s going on in the game world.

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Time moves as the narrative needs it. While in combat, a few seconds of game time can take hours to play. When your characters are talking with NPCs, time passes roughly in real-time. On the other hand, hours or days can pass in a moment if nothing interesting is happening.

At an extreme, we had a combat last several sessions (a bit of an excessive scenario), so in that case a day in game (actually, probably just a few minutes) took months in real time.

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