Using the Time-Spinner's "Adventure Way Back in Time" option will decrement the delay counter for the last zone you adventured in however it doesn't actually burn the delay as far as KoL is concerned. This is most visible when using Ezandora's Guide.
It also appears to increment the Digitized Monster counter unnecessarily which causes the Digitized Monster to appear later than the counter would lead you to believe.
I think this is due to it costing an adventure when you use that option but it not being an adventure.php location.
We should probably test Travel to a Recent Fight similarly as it may suffer from the same issue.
KoLmafia v17.6 r18258