how long does it take to level to 64?

[Caimie_Tsukino]

I went to the Diadem as a Lvl 15 Botanist dressed in HQ gear gear, with +50% XP buff from the gear (earings, headpiece).
I spent the whole time harvesting Lvl 10 items from the nodes -- the XP from the nodes goes up as your level goes up.
So 40 minutes later, with no gear changes an no need to stop for repair, I was at Botonist Lvl 32.

I'll need to change gear at Levels 60, 70, and 80 if I continue.

By the Twelve, that's fast!
I still remember back in ARR in 2014, it took me stupid amount of hours of work to reach lv 30-ish just to get Mythril Ore from the Sagoli Desert!
That was the time when I just leveled MIN straight up by gathering stuff in the open world without any buff...