It's 2007. Will your VCR function?

The clock is ticking on a new Y2K-style techno scare in 2007 - thanks to Congress.
That's because legislators slipped a measure into the energy bill that President Bush is set to sign today extending daylight-saving time by four weeks - a change-up that machines already programmed for the annual hour jump may not be prepared to cope with.

Daylight-saving time would start three weeks earlier in the spring and last one week longer in the fall.

"Missiles won't be launching, but it's still going to cause a lot of hassle," said technology expert Lauren Weinstein, warning that the big risks will be to the technologically challenged who have come to rely on computers and electronic date books to help meet their appointments.

"Things advance to the point where you expect things to happen automatically and you expect it to be correct," he said.

The idea behind the bill is to save energy by giving people that extra hour of summer sun for another month.

But machines that work on the old system - falling back one hour on the last Sunday of October and leaping ahead on the first Sunday of April - cannot be reprogrammed as easily as politicians can rewrite a law. Congress last changed the system in 1987.

The biggest threat for most people is probably those missed appointments.

"It wouldn't be a society-wide catastrophe, but there would be a problem if nothing's done about it or we try to move too quickly," said Dave Thewlis, head of a group that promotes standards for calendar software.

And people who want their auto-programmed VCRs to record the right shows may have to pull out the instruction manual.

"It is unfortunately going to add a little bit of complexity to consumers," said Reid Sullivan at Panasonic Consumer Electronics Co.

Oh dear, people will actually have to RTFM instead of relying on the machines to do it themselves. Quick, someone call Skynet.