Olson-convert is a single script that will convert on date/time/timezone into any other timezone using the olson timezone database. Supports input ics file and will output valid ics with VTIMEZONEs changed.

Downloading:

Olson-convert is located here;

http://svn.osafoundation.org/tools/olson-convert/trunk/

• Usage

$ python olson-convert.py --help Usage: olson-convert.py [options]

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -v, --print-valid     Print all valid timezones
  -f FROM_TZ, --from-tz=FROM_TZ
                        The source timezone, defualts to UTC
  -i INPUT_FILE, --input=INPUT_FILE
                        Input file mode, converts all timezones in input
                        iCalendar file to specified timezone
  -s, --no-dst          Specify when local times should _not_ be in DST
                        (Daylight Savings Time)
  -o OUTPUT_FILE, --output=OUTPUT_FILE
                        Output file, used during input filemode. Name of file
                        you wish to write converted iCalendar file, if not
                        specified file is written to stdout
  -z TO_TZ, --to-tz=TO_TZ
                        The time to convert the date and time to
  -u DATETIME, --datetime=DATETIME
                        The date and time you wish to convert. Example:
                        20050224T154500
  -l FULL_DATETIME, --full-datetime=FULL_DATETIME
                        The date and time and timezone you wish to convert.
                        Example: US/Pacific:20050224T104500
  -t TIME, --time=TIME  The time you wish to convert. Example: 104500
  -d DATE, --date=DATE  The date you wish to convert. Example: 20050224