Calendar app icon is displaying the wrong date
For some reason on my iPhone's homescreen the icon for the Calendar app has today started displaying the wrong date.
It should show today's date, Monday 6th but instead it reads Sunday 5th.
What confuses me is that the phone does know the date is Monday 6th as the lock screen shows it correctly and also when I actually load the Calendar app it starts on the right date. Also, when I load the multi task bar the Calendar app icon there is correct. See the attached photo, which shows the Calendar app on the home screen (faded, middle left) displaying yesterdays date Sunday 5th, while the app icon in the multi task bar is correct, Monday 6th.
Syncing the calendar with my iMac does not correct the error. Equally, turning the phone off and on again has not sorted it.
Does anyone have any idea what might be causing the fault? And more importantly how to correct it?
Thanks.
iPhone 4, iOS 4.3.2