Time Flies

Time Flies Campaigns

From the Midgard Worldbook
“The Time Flies rule states that during a campaign, the timeline always advances between game sessions by a period of not less than twice the real-world time that has passed. If it has been a week since you last played, then two weeks passed in the game world; if it has been a month, then two months have passed. Just add the time to the game’s calendar, noting that it includes rest and recovery time or downtime or heroes‑on‑vacation time
“If the group is in a dungeon or on a highly time‑sensitive mission, apply the additional time once they return to a suitable location.
“For campaigns that seek to emulate the storytelling rhythm of a long-form saga, consider increasing this modifier to at least two months of game time between sessions. As a result, characters can age at a noticeable rate (six game sessions equal one year of game time), and generational effects become more pronounced. In addition, this prevents the chronological oddity of heroes going from novice to archmage in only a year or two.”

For the Bloodstone Campaign

The Bloodstone campaign will stick with double the real-world time. Sometimes this will be handled in-story (it takes a week or two to travel back to town), but if the adventurers spend three weekly sessions clearing out a dungeon in the sewers below town, it’s going to take them six weeks to fully recover from the ordeal, sell their treasures, etc.
Adventurers can use Downtime actions if they have extra time during those six weeks, but aren’t required to use downtime rules. Time Flies whether they are using Downtime or not. For players who want to use Downtime Actions, make a list of the actions you are taking and hand that list to the DM. The beginning of the next session may require a few rolls to determine the outcomes of the actions, but Downtime won't generally be happening at the table.
While adrenelin keeps you going for that three-day dungeon crawl, once it's over and you’re back to relative safety the bruises need to heal up, and “oh, that’s definitely a sprain.”, etc. So it takes some time to get back in shape.
The assumption is also that it takes a few days to find buyers for any treasures taken out of a dungeon, after all it’s usually pretty crazy stuff, and a few more days to buy and sell.
For characters who aren’t engaged in anything, “Wow, where’d the time go.”