Pyros
<Silver Donator>
Not sure if you mean like a moon cycle or something but a day ingame is a bit more than an hour.The times are in game time not IRL time, the entie day/night cycle is something like 4 hours.
You can usually gather the nodes twice per hour(roughly, it's like 70mins so every 35mins). ARR nodes iirc only spawn once per day or used to, so would still be once an hour, but yeah it's not so bad as long as you set an alarm, either ingame or via a 3rd party. If you unlock most nodes you more or less constantly teleport from one node to the other, with only a few minutes break to regen GP, with little downtime.