Time Formatting
Introduction
Under the Advanced Tab | Formatting you can specify a custom time format. This format will determine how all event times are displayed in the generated html calendar.
The time format of the displayed "Event Time" within a calendar can be specified using a time format string made up of characters with the following properties:

h | Displays the hour without a leading zero (0-23).
hh | Displays the hour with a leading zero (00-23).
n | Displays the minute without a leading zero (0-59).
nn | Displays the minute with a leading zero (00-59).
t | Displays the time using the format given by the ShortTimeFormat windows global variable.
tt | Displays the time using the format given by the LongTimeFormat windows global variable.
am/pm | Uses the 12-hour clock for the preceding h or hh specifier, and displays 'am' for any hour before noon, and 'pm' for any hour after noon. The am/pm specifier can use lower, upper, or mixed case, and the result is displayed accordingly.
a/p | Uses the 12-hour clock for the preceding h or hh specifier, and displays 'a' for any hour before noon, and 'p' for any hour after noon. The a/p specifier can use lower, upper, or mixed case, and the result is displayed accordingly.
ampm | Uses the 12-hour clock for the preceding h or hh specifier, and displays the contents of the TimeAMString global variable for any hour before noon, and the contents of the TimePMString windows global variable for any hour after noon.
'xx'/"xx" | Characters enclosed in single or double quotes are displayed as-is, and do not affect formatting.