I have my iPhone 4 set to get it's time automatically buy recently noticed, while waiting for a train, that it was running slow against the station clock. I double checked it against BT's speaking clock and found that it's almost a minute out. I made sure my iPhone's clock wasn't simply slipping by manually setting it forward 20 minutes or so then letting it resync with the time server. Again it was a minute slow. Anybody else seeing anything similar?