Wrong time format for end of meeting

When I try to build a meeting, the end date is incorrectly built (with columns). That way, Outlook is unable to interpret it at all.

Sample (see DTEND line):

EGIN:VCALENDAR
VERSION:2.0
PRODID:-//CompanyName//ProductName//EN
METHOD:REQUEST
BEGIN:VEVENT
ORGANIZER;CN=***Me and myself***:MAILTO:*****masked@masked.org****
ATTENDEE;CN="*****masked@masked.org****";ROLE=REQ-PARTICIPANT;RSVP=FALSE:MAILTO:*****masked@masked.org****
ATTENDEE;CN=" *****masked@masked.org****";ROLE=REQ-PARTICIPANT;RSVP=FALSE:MAILTO: *****masked@masked.org****
UID:20121107T111247-1827659008-domain.com
DTSTAMP:20121107T111247
DTSTART:20121121T150000
DTEND:20121121T17:00:00
LOCATION:03.2
SUMMARY:ffff
DESCRIPTION:Description de la réunion
BEGIN:VALARM
TRIGGER:-PT15M
ACTION:DISPLAY
DESCRIPTION:Reminder
END:VALARM
END:VEVENT
END:VCALENDAR