quoting GM4Him and CJMPinger:
2 days is way too short. Something like 7-10 days for the tadpole is much more reasonable. And perhaps the timer could be extended via Nettie/Hag/Halsin/etc, maybe 1 day each. Something like 5 days until the ritual happens, beginning the first time you talk to the druids. A time component shouldn't force you to skip content, but instead give you a sense of urgency while still allowing to you to complete most if not all of the content with proper time management.
For me, wanting no time limits has nothing to do with managing resources, as I tend to be pretty strict with them (and unsympathetic to my spellcasters) anyway.
But if I see something interesting, I want to be able to investigate it at that time, not try to remember to come back later after a timed quest is over. <snip>
This type of timer would be based on long resting so (assuming cutscenes stop being tied to long-resting) you can always just not long rest. Use any of the ~infinite scrolls, potions, food, grenades to keep your party in fighting shape. As long as investigating an area doesn't deeply cut into your long rests, then you can investigate away! There's no in-game or real time clock that's ticking down.