The only reason for time is so that everything doesn't happen at once.

One minute: Sixty seconds. The time it took to write this post.

One work minute: Sixty minutes. The time it takes the clock hand to tick that final division so that you can go home.

One MMO minute: Sixty milliseconds. The time it takes to do ‘one last thing, it’ll just take a minute’ that results in you waking your partner two hours later when you try to sneak sheepishly into bed.