Unknown timezone "US-Eastern" in "xxx". Treated as 'floating' local timezone instead:
After receiving an iCAL calender vent, Thunderbird Lightning/Calender shows the following error on the error console:
Lightning: Unknown timezone "US-Eastern" in "xxx". Treated as 'floating' local timezone instead: 29 March 2021 All Day BEGIN:VCALENDAR PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN VERSION:2.0 BEGIN:VEVENT DTSTAMP:20210329T115959Z UID:b713e5fb-7c94-40c1-9a7b-28c83d05bb8f SUMMARY:Review Due ORGANIZER;CN=International Journal of Critical Infrastructure Protection:m ailto:ijcip@elsevier.com DTSTART;VALUE=DATE;TZID=US-Eastern:20210329 DTEND;VALUE=DATE;TZID=US-Eastern:20210330 SEQUENCE:0 DESCRIPTION:xxxxxxxxxxxxx END:VEVENT END:VCALENDAR
My timezone is Europe/Amsterdam. Version: 78.8.0 (32-bit)
What is the problem? Is the problem at my side or is it caused by the calendar event generator? How to fix this problem?
Alla svar (1)
wikipedia has a list of valid names https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
I do not see US-Eastern listed. I do see US/Eastern but it is deprecated in favor of a whole host of America/[City name] literals as states make their own decisions on daylight saving I assume.
So I am guessing is is a non standards compliant ICS file you have received. But I am not an expert on ICAL or ICS.