Brennan
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I think what was meant was this: you can hire a hero on the day they are dismissed, but you can't move them on the map; you can only move them the next day.
That's not correct. A dismissed/killed hero cannot even be hired on the same day. At least, that's what the rules of HeroesPortal state.
A hero who has fled/paid a ransom can be hired, but cannot be moved.
Will HeroesPortal accept saves for one hour longer? According to Kyiv time.
Saves will be accepted until the same time everywhere, until 23:59 Moscow time. And according to Kyiv time, that will be until 00:59.