One of the power plays in those turned base games was to take your turn just before midnight and then take another one right away when then day ticked over. Use

One of the power plays in those turned base games was to take your turn just before midnight and then take another one right away when then day ticked over. Useful for launching a surprise attack on someone without giving them a chance replenish their defenses. Phone lines were often busy at those times for this reason. Of course, these days you'd probably be able to just buy an extra day for 500 gold coins...