we are getting calendar time differences when event from ics file is imported.
this is present in ics file:-
BEGIN:VTIMEZONE
TZID:GMT Standard Time
BEGIN:STANDARD
DTSTART:16010101T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T010000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
in event:-
DTSTART;TZID=GMT Standard Time:20210528T104500
DTEND;TZID=GMT Standard Time:20210528T110000
in outlook/thunderbird event time showing as 03:15 PM to 03:30 PM
but on roundcube it is showing as 04:15 PM to 04:30 PM
Seems like the difference is because of daylight saving time.
we are using plugins from kolab-roundcube-plugins-mirror.
Any help to solve this issue in roundcube
