Users of Apple's iPhone peppered Twitter and blogs with complaints Sunday when their phones bungled the one-hour "spring forward" to daylight savings time that went into effect overnight Saturday.

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iPhone 4. (Xinhua/Reuters File Photo)
In the latest clock woe for Apple's chic iPhone, some users' phones fell back one hour instead of springing forward, making the time displayed on the iPhone two hours off.

For all of their fancy features, these paragons of high-tech have had trouble telling time. A clock glitch prevented alarms from sounding on New Year's Day and the devices also struggled to adjust to the end of daylight savings time back in November.

The glitch affected iPhone owners who subscribe for phone service through AT&T and Verizon.

Twitter was abuzz with a simple solution: Either shut down and restart the phone, or switch the phone to "airplane mode" and then back.

Apple has sold more than 100 million iPhones since they were first offered in 2007, dazzling customers with features that allow users to watch movies, play games, surf the Internet and get driving directions on a small, sleek device. (Agencies) 

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