For those with the time issue where your clock time is different from your appointment times on the calendar and on alarms this is what I did and it seemed to fix the problem.
Go to settings / system / clock & alarm and select your time zone.
Go back to home screen
Click on clock to get to the world clock screen
Hit menu / remove city and remove the bogata time that is on there.
If you haven't already, pick your city that falls within your time zone and select.
Soft reset. That worked for me...
