The world record for Vanilla speed leveling is 4 days 20 hours /played. It is held by Joana. He did it using a hunter (by far the fastest leveling class).
No, private server times do not count as the experience needed across levels is not accurate, nor is the experience rewards on some mobs/quests.
So, unless you play without sleep, you’re not likely going to hit 60 in the first week. Also keep in mind, he did the speed level by developing a plan, best routes, which quests to take or pass, which ones can be done together, optimizing travel vs turn in.
It is mathematically impossible to hit 60 in 4 days or less, even without sleeping, without using the bathroom, and without eating or drinking anything.
Keep in mind that ALL speed levelers who make that /played time rely heavily on rested exp while offline. So it would take even longer if you just stayed online the entire game. My guess would be by several hours.
The reason I’m posting this is because I want to laugh hysterically every time someone says, “Molten core will be cleared week 1” or even week 2.
Let’s assume you can do MC with 36 level 58 characters. Do you honestly believe that anyone will have 36 players get to 58-60 in that amount of time, while geared enough to do the encounters, plus farm the water rep, plus FR gear for Rag (which IS needed, I don’t care what private servers did, they aren’t correctly tuned).
So here’s my thought. Sure, you can play for a week straight, living on energy drink, light snacks, peeing in a bottle, and hit 60 with liver and kidney damage. People have died doing it. Oh, and you could expect 36-40 people to do this with you (hahaha).
We could be realistic, and know that it’ll take even dedicated players over 5 days /played to hit 60. So if someone puts in a solid 24 hours, they’re only 1/5 or 1/7 of the way depending on how optimal their plan is.
Based on this information, I’m predicting server first levels 60’s hitting at about 6-7 days (These are the try hards who will barely sleep and likely won’t shower -ewww) That average player who puts in 5 hours a night everyday will be at 6 days /played with a slightly below optimal plan. That’s 28.8 days to reach 60.