Is there a maximum length to a qualifying session?

[worldly pelican]

Races are only allowed to last 2 hours under non-red flag and 4 hours overall. Red flags in practice sessions don't stop the timer at all.

What about qualifying? Is there some maximum timer before the session gets abandoned (perhaps to be resumed on Sunday morning)?

[split mulch]

Nothing I could find, hard to back up a negative answer but yeah. Just says it'll stop the timer for each red flag which you'll be aware of anyway (37.7)