Time in games as a strange thing. While Einstein would agree with the notion that there isn't a universal, objective time, he would find that it is utterly impossible to do any clock coordination. Game time is dictated by plot, convenience, and drama.
Due to these tendencies, time flows in two general ways: Slow Flow and Explode.
Slow Flow is a mysterious phenomenon. During it, there is a quantitative passage of time. This can even be mapped to the outside world, passing at a constant, though different rate, so that one can create formulas which describe how many minutes pass in one world relative to another.
However, there is not a qualitative passage of time. Large-scale events simply do not occur. People can move, talk, and fight. These small actions will not add up to a whole, no matter how many. A million drops of water will not form a river.
This Slow Flow is a convenient phenomenon for the player. It gives them time to explore and learn, developing their skills as a player and as a character.
In contrast, Explode takes place at a pace sufficiently similar to the outside world as to be indistinguishable. Furthermore, during this passage of time, events can occur. Small actions can combine. Actions which would have no impact during Slow Flow are able to add up to dramatic changes in the world during Explode.
Surprisingly, these are complementary states. Because the Slow Flow can effectively suspend the passage of time, a player within it can therefore arrive at precisely the right time for Explode. Whether they wander for a few minutes or several years, they will always arrive at precisely the right time for major events to occur.
Another useful aspect of time is that these two states are physically separated. One cannot be in both at once, but the barriers between them are often predictable. This allows a player to choose when to move between states, though they may not always know where the transitions are. The result is that while the rules within Explode may be the same, the starting conditions can be altered from outside. A player in Slow Flow can store up items and gain new abilities, dramatically changing the potential outcomes within Explode.
This raises some interesting possibilities about our own universe. Physicists aren't quite sure about what happened early on, or if early on is even a relevant concept, since it seems that time itself didn't exist before. How can something happen if there is not even time? Perhaps what we need is a new perspective. While most Explode happens in a short span, sometimes lasting mere seconds, rarely more than an hour, our universe seems to have been around for much longer. Despite this difference in span, our universe fits the traits of a Explode: no apparent beginning, synchronized passage of time, meaningful outcomes. Clearly the so-called Big Bang was not a bang or even a rapid inflation. Instead, it was someone zoning into our universe from an indeterminate amount of time in Slow Flow.
If we could find that entrance and send someone outside, they'd be able to gather all needed materials and knowledge, with unlimited time at their disposal. However, there is the risk that upon, from our perspective, instantly returning, he will have lost all sense of perspective and just wander our universe stealing brooms.