iPhone 5 has gained high popularity since its launch but at the same time certain issues have dogged the smartphone. Recently, iPhone 5 users have started reporting a bug which changes the time and date on the device.

A number of iPhone 5 users have reported on Apple Support Community that the iPhone 5 changes the time automatically by minutes, hours, and sometime days. Users suggest that the problem persists with the device's automatic date and time feature.

Furthermore, the problem seems specific to iPhone 5's offered by Verizon, as many of the people confirm they are Verizon subscribers. The time and date bug may be the handset's compatibility issue with Verizon's network.

"The phone reverted to 8/26/12 + 30 minutes it had been plugged in all night as we slept. I have manually set the time and I am hoping that "fixes" it and my phone doesn't get confused again as we sleep tonight. i called VZW and was told they havent heard this yet. who knows?" said a user on Apple's support forum.

Another iPhone 5 user reported, "Mine isn't just off by 30 min. Today the black one was off by 15 days plus 6 hours and 12 minutes when I pulled it off the charger. The white one is my wife's and she complained yesterday evening that she had to fix the time 4 times throughout the day."

The root cause of problem is still unknown; however, speculation suggests that the issue may be because of the timing code embedded in Verizon's CDMA cellular network is handled.

"In order to operate properly, all CDMA cell towers transmit a time signal based on data from an on-site GPS receiver, allowing the network to stay in synchronization. It is possible that either Apple's handset is somehow misinterpreting the time signals, or timing data from certain Verizon cell towers is faulty, though at this point the theories are mere conjecture," reported Apple Insider.

Many users have also reported that the problem occurs when users are at home and especially if the Wi-Fi or LTE coverage is inconsistent.

Verizon and Apple have not commented on the issue. Within just a month after its launch, the much-awaited iPhone 5 has received a few complaints. It is anybody's guess if the list of issues and bug will increase in the near future.