Issue #23 Cleanup dead code and change local time

Local time format is now a 12 hour clock with am/pm representation of the time.
Remove time in eastern method and its test cases.
Issue #23 Reformat dates

Remove timezone from time in UTC display.
Use 12 hour clock where AM/PM are displayed.
Issue #23 Update display of all day on check

When checking the all day box refresh the time preview