BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Sotic Ltd//EN
METHOD:PUBLISH
X-PRIMARY-CALENDAR:TRUE
X-MS-OLK-WKHRSTART;TZID="GMT Standard Time":080000
X-MS-OLK-WKHREND;TZID="GMT Standard Time":170000
X-MS-OLK-WKHRDAYS:MO,TU,WE,TH,FR
BEGIN:VTIMEZONE
TZID:GMT Standard Time
BEGIN:STANDARD
DTSTART:16011028T020000
TZOFFSETFROM:+0100
TZOFFSETTO:-0000
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010325T010000
TZOFFSETFROM:-0000
TZOFFSETTO:+0100
END:DAYLIGHT
END:VTIMEZONE
END:VCALENDAR