Players created a custom game, mid only mode.
After some time one player was dropped from the game (dota crash). They used replay takeover function to load the game.
Takeover loaded the game on 00:30 timer and runes started spawning for 30 seconds later their default time.
I mean the game was loaded on 00:30 with pause. After unpause haste rune immediately spawned and all next runes were 2:30, 4:30, 6:30 time.