Please note that 12h is not a rigidly followed rule any more, although it does happen more often on the first Pit Stop of each season.
For TAR 23 we've had:
12h (Iquique), ~26h (Santiago), ~13h (Lisbon), 0h (Svolvaer), ~16h (Sopot), ~14h (Vienna), and ~21h (Abu Dhabi).