我已经生成了ICS文件，该文件的事件分别在 9AM 开始并在太平洋时间（UTC-8） 5PM 结束。转换为我的本地时间（GMT + 4）时，它应显示事件为 10PM-6 AM ，而不是Google和Outlook都将其转换为 8PM-4 AM 。
我已经尝试针对日光和标准设置调整 TZOFFSETFROM 和 TZOFFSETTO 设置，以显示正确的转换，但是它仅对Outlook有效-Google日历似乎可以完全忽略这些设置。但是，无论如何更改Outlook的设置似乎对我来说是错误的，因为最初它们具有适用于太平洋时间的正确设置？
随附了ICS文件的代码。
VERSION:2.0
PRODID:-//Foobar Corporation//NONSGML Foobar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:EnergyPlex
X-WR-TIMEZONE:America/Los_Angeles
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
X-LIC-LOCATION:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:20190709T133817-12030501-example.com
DTSTAMP:20190709T133817
DTSTART;TZID=America/Los_Angeles:20190722T090000
DTEND;TZID=America/Los_Angeles:20190722T170000
SUMMARY:Energyplex Day Camp for Jenny Doe
DESCRIPTION: Your child is booked for a camp on this day.
END:VEVENT
BEGIN:VEVENT
UID:20190709T133817-422290764-example.com
DTSTAMP:20190709T133817
DTSTART;TZID=America/Los_Angeles:20190723T090000
DTEND;TZID=America/Los_Angeles:20190723T170000
SUMMARY:Energyplex Day Camp for Jenny Doe
DESCRIPTION: Your child is booked for a camp on this day.
END:VEVENT
BEGIN:VEVENT
UID:20190709T133817-847881910-example.com
DTSTAMP:20190709T133817
DTSTART;TZID=America/Los_Angeles:20190724T090000
DTEND;TZID=America/Los_Angeles:20190724T170000
SUMMARY:Energyplex Day Camp for Jenny Doe
DESCRIPTION: Your child is booked for a camp on this day.
END:VEVENT
BEGIN:VEVENT
UID:20190709T133817-1093239879-example.com
DTSTAMP:20190709T133817
DTSTART;TZID=America/Los_Angeles:20190725T090000
DTEND;TZID=America/Los_Angeles:20190725T170000
SUMMARY:Energyplex Day Camp for Jenny Doe
DESCRIPTION: Your child is booked for a camp on this day.
END:VEVENT
BEGIN:VEVENT
UID:20190709T133817-190860610-example.com
DTSTAMP:20190709T133817
DTSTART;TZID=America/Los_Angeles:20190726T090000
DTEND;TZID=America/Los_Angeles:20190726T170000
SUMMARY:Energyplex Day Camp for Jenny Doe
DESCRIPTION: Your child is booked for a camp on this day.
END:VEVENT
END:VCALENDAR
预期结果是在Outlook和Google日历上的格林尼治标准时间+4时区显示事件为晚上10点-上午6点。
答案 0 :(得分：1)
根据您提供的信息，您的假设是错误的。两者都显示正确的时间：
给出事件的开始和结束日期（例如，第一个事件的开始= 20190722T090000），America / Los_Angeles在该日期处于夏令时，因此在UTC-7。
20190722T090000 + 7h = 20190722T160000（UTC时间），转换为UTC + 4时，您将获得20190722T160000 + 4h = 20190722T200000，因此本地时间是晚上8点。