URL;EXTERNAL=YES:http://www.example.com/
RECURRENCE-ID;TZID=Europe/Truro;RANGE=THISANDFUTURE;VALUE=DATE;EXAMPLE=DATA:
20160124
URL;EXTERNAL=YES:http://www.example.com/
RECURRENCE-ID;TZID=Europe/Truro;RANGE=THISANDFUTURE;VALUE=DATE;EXAMPLE=DATA:
20160124