clipped from www.abc.net.au

It's 2.55 pm You have an appointment across town at 3.30 pm. Should you leave now? Are you already late?

Your best answer to such time-related questions is usually an educated, probably overly optimistic, guess.

But a prototype watch that uses a calendar, a route planner, navigation applications, GPS and wireless internet could help get you where you're going on time.

This watch tells you which bus to catch to make your appointment, even if there are delays

For the perpetually late, the Just in Time Watch could improve punctuality and, its inventors hope, bring wristwatches back into fashion.

Frey, who developed the hardware and coded the software for the watch, equipped the device with the capability to connect via Bluetooth to mobile phones.

This gives the watch access to the internet and can thus synchronise it with appointments and access web-based navigation, timetable and traffic information services.