In Roblox Grave/Digger , an hour usually means about 1 hour of real playtime to count as 1 in-game hour. Some players say it’s easiest to earn that time in a public server because the timer feels like it moves more smoothly while you stay active.

What that means

  • 1 real hour = 1 hour tracked in the game.
  • You do not need to “speedrun” it; you just need to stay in the game long enough for the hour counter to climb.
  • A walkthrough video specifically describes the method as simply playing for an hour to get 1 hour.

Small note

The game page also shows Grave/Digger is a Roblox game with a large player base, so this hour-tracking advice is for the actual game community discussion rather than an official rulebook.

TL;DR

An hour in Roblox Grave/Digger is basically one hour of real time spent in the game.