So, problem solved, right? Not exactly, according to Bloomberg. This is because, like people, most computer systems generally assume a minute is 60 seconds. The addition of a new second, it is feared, may snarl systems across the world. It is estimated, according to Bloomberg, that about 10 percent of large scale computer networks will have at least some disruption as they try to account for the upcoming leap second. This includes the financial exchanges and automated trading systems that undergird the global economy. Consequently, major exchanges are taking measures such as slightly early closures or delaying market transactions.