Brief description
When attempting to import the iCal URL into a calendar application other than Google Calendar (Outlook/Apple Mail tested) the calendar either fails to load, or displays entires at an incorrect time when the computer timezone of the calendar user doesn't match the timezone the streamer uses to create their schedule
Downloading the iCal file, the API is attempting to return the dStart and dEnd events in terms of a timezone using TZID=/<country>/<locality>:<datestring> but the file doesn't contain any VTIMEZONE information to parse the timezone to a UTC offset as per RFC 5545 ( https://datatracker.ietf.org/doc/html/rfc5545#section-3.6.5 ).
How to reproduce
Example taken from streamer "piratesoftware" showing the displayed schedule on the website, next to how Outlook displays the same schedule.
Entries should be converted to the users local timezone and displayed as such
Screenshots
Additional context or questions
iCal data for one of the above calendar entries:
BEGIN:VEVENT UID:27fa4dc4-2bb0-476b-b903-f70444693b3f DTSTAMP:20221113T230240Z DTSTART;TZID=/America/Los_Angeles:20221118T000000 DTEND;TZID=/America/Los_Angeles:20221118T120000 SUMMARY:Game Dev - Q/A DESCRIPTION:Software and Game Development. CATEGORIES:Software and Game Development RRULE:FREQ=WEEKLY;BYDAY=FR END:VEVENT
iProdigy
commented
1 month ago
Brief description When attempting to import the iCal URL into a calendar application other than Google Calendar (Outlook/Apple Mail tested) the calendar either fails to load, or displays entires at an incorrect time when the computer timezone of the calendar user doesn't match the timezone the streamer uses to create their schedule
Downloading the iCal file, the API is attempting to return the dStart and dEnd events in terms of a timezone using
TZID=/<country>/<locality>:<datestring>but the file doesn't contain any VTIMEZONE information to parse the timezone to a UTC offset as per RFC 5545 ( https://datatracker.ietf.org/doc/html/rfc5545#section-3.6.5 ).How to reproduce Example taken from streamer "piratesoftware" showing the displayed schedule on the website, next to how Outlook displays the same schedule.
Download icalendar file from https://api.twitch.tv/helix/schedule/icalendar?broadcaster_id=151368796 and attempt to import into Outlook or Apple Mail, when comparing the entries to the schedule displayed on the website, the entries in the application
Expected behavior
Entries should be converted to the users local timezone and displayed as such
Screenshots
Additional context or questions
iCal data for one of the above calendar entries:
BEGIN:VEVENT UID:27fa4dc4-2bb0-476b-b903-f70444693b3f DTSTAMP:20221113T230240Z DTSTART;TZID=/America/Los_Angeles:20221118T000000 DTEND;TZID=/America/Los_Angeles:20221118T120000 SUMMARY:Game Dev - Q/A DESCRIPTION:Software and Game Development. CATEGORIES:Software and Game Development RRULE:FREQ=WEEKLY;BYDAY=FR END:VEVENTicalendar validator link: https://icalendar.org/validator.html?url=https://api.twitch.tv/helix/schedule/icalendar?broadcaster_id=151368796