Respawn Timer Calculator
Calculate respawn timers for bosses, mobs, and nodes from base time and game clock.
Tracks multiple targets and shows reappearance time for each.
This calculator is for the slow timers: world bosses, rare spawns, gathering nodes, chests, and event mobs that come back minutes or hours after they are killed, on a schedule tied to the wall clock rather than to a match. Enter the time you killed it and the respawn timer your game or wiki gives, and you get the clock time to be standing there.
The two shapes a respawn timer comes in
A fixed timer always takes the same amount of time. Kill it at 2:30 PM on a 30 minute timer and it is back at 3:00 PM, every time. Leave the maximum field blank or at 0 and you get a single time rather than a range.
A respawn window is the more common and more annoying case. The game rolls a random delay somewhere between a minimum and a maximum, so all you can know is a range:
Earliest respawn = Time Killed + Minimum Timer Latest respawn = Time Killed + Maximum Timer
Worked example: You kill a world boss at 2:30 PM. The wiki lists it as a 30 to 60 minute respawn.
Earliest = 2:30 PM + 30 min = 3:00 PM Latest = 2:30 PM + 60 min = 3:30 PM
Before 3:00 PM there is no point being there. Between 3:00 and 3:30 it can appear at any moment, and that half hour is the part you actually have to camp. If 3:30 passes with nothing, somebody else almost certainly took it, and your timer should restart from their kill rather than yours.
Where the timer starts matters more than people expect
Most games count from the moment the target dies. Some count from when the corpse despawns or the last player leaves the area, which quietly adds several minutes. A few reset every timer on a server restart. If your predictions are consistently early by roughly the same amount every time, the game is almost certainly using a later start point than you are.
Typical respawn timers
| What you are tracking | Usual timer |
|---|---|
| Gathering and ore nodes | 2 to 10 minutes, often a window |
| Named or rare mobs | 10 to 30 minutes |
| Open-world bosses | 30 minutes to 6 hours, almost always a window |
| Raid and guild bosses | fixed daily or weekly resets, not a rolling timer |
Camping a window without wasting an evening
Write down the exact kill time instead of estimating it. A 30 to 60 minute window camped from a start time that was ten minutes off is half an hour of standing in the wrong place. On a contested spawn the better move is to work backwards: watch for someone else to kill it and start your timer from that, since their kill is what resets the clock.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
SuperGlobalCalculator is independently built and maintained. See how we build and verify our calculators.