Time zone suggestions for draft-ietf-calsch-ical-08.txt
Paul Eggert
eggert at twinsun.com
Fri Jul 17 00:43:53 UTC 1998
Here are some suggested improvements, in the area of time zones,
to the latest iCalendar draft (which I got from:
ftp://ftp.isi.edu/internet-drafts/draft-ietf-calsch-ical-08.txt
).
* A more consistent naming strategy for TZIDs. The current draft is
inconsistent: for the same time zone it sometimes says
"America-New_York", sometimes "America-New York", and sometimes
other things like "Eastern". TZIDs are arbitrary, but a good naming
convention can help reduce the number of errors, ease maintenance,
and improve interoperability.
iCalendar should recommend, but not require, the names in the
public-domain Olson database (omitting the names present there only
for backwards compatibility); this is the best widely-available
prior art. For NYC this name would be "America/New_York".
* A reference to the Olson database prior art. Many potential
implementers don't know about this useful source, and have thereby
propagated incorrect time zone data.
* Allow UTC offsets that are not multiples of one minute. This is
needed for historically recent applications (e.g. the time zone in
Liberia up to 1972).
* The examples should be a tad more careful about distinguishing
between US Eastern time and New York time, since there was a lot of
confusion about the Eastern time zone before, say, 1976.
Here's a proposed line-by-line patch to the -08 draft, which embodies
these suggestions.
--- draft-ietf-calsch-ical-08.txt Wed Jul 15 10:41:12 1998
+++ draft-ietf-calsch-ical-08.txt-fix Thu Jul 16 17:27:13 1998
@@ -1730,7 +1730,7 @@
The following are examples of this property parameter:
- DTSTART;TZID=America-New_York:19980119T020000
+ DTSTART;TZID=America/New_York:19980119T020000
@@ -1740,7 +1740,7 @@
Internet Draft C&S Core Object Specification June 29, 1998
- DTEND;TZID=America-New_York:19980119T030000
+ DTEND;TZID=America/New_York:19980119T030000
The TZID property parameter MUST NOT be applied to DATE-TIME or TIME
properties whose time values are specified in UTC.
@@ -2031,7 +2031,7 @@
section on Time Zone. For example, the following represents 2 AM in
New York on Janurary 19, 1998:
- DTSTART;TZID=America-New_York:19980119T020000
+ DTSTART;TZID=America/New_York:19980119T020000
Example: The following represents July 14, 1997, at 1:30 PM in New
York City in each of the three time formats, using the "DTSTART"
@@ -2039,7 +2039,7 @@
DTSTART:19970714T133000 ;Local time
DTSTART:19970714T173000Z ;UTC time
- DTSTART;TZID=America-NYC:19970714T133000 ;Local time and time
+ DTSTART;TZID=America/New_York:19970714T133000 ;Local time and time
; zone reference
@@ -2462,7 +2462,7 @@
Here is an example of evaluating multiple BYxxx rule parts.
- DTSTART;TZID=US-Eastern:19970105T083000
+ DTSTART;TZID=America/New_York:19970105T083000
RRULE:FREQ=YEARLY;INTERVAL=2;BYMONTH=1;BYDAY=SU;BYHOUR=8,9;
BYMINUTE=30
@@ -2683,7 +2683,7 @@
X-TIMEOFDAY:133000Z
- X-TIMEOFDAY;TZID=America-New York:083000
+ X-TIMEOFDAY;TZID=America/New_York:083000
4.3.13 URI
@@ -2737,11 +2737,12 @@
utc-offset = time-numzone ;As defined above in time data type
- time-numzone = ("+" / "-") time-hour time-minute
+ time-numzone = ("+" / "-") time-hour time-minute [time-second]
Description: The PLUS SIGN character MUST be specified for positive
- UTC offsets (i.e., ahead of UTC). The value of "-0000" is not
- allowed.
+ UTC offsets (i.e., ahead of UTC). The values "-0000" and "-000000"
+ are not allowed. The time-second, if present, may not be 60; if
+ absent, it defaults to zero.
No additional content value encoding (i.e., BACKSLASH character
encoding) is defined for this value type.
@@ -2801,8 +2802,8 @@
Property names, parameter names and enumerated parameter values are
case insensitive. For example, the property name "DUE" is the same as
- "due" and "Due", DTSTART;TZID=Eastern:19980714T120000 is the same as
- DtStart;TzID=Eastern:19980714T120000.
+ "due" and "Due", DTSTART;TZID=America/New_York:19980714T120000 is the same as
+ DtStart;TzID=America/New_York:19980714T120000.
4.6 Calendar Components
@@ -3270,8 +3271,8 @@
locations adjust their time by a fraction of an hour. Standard Time
is also known as Winter Time. Daylight Saving Time is also known as
Advanced Time, Summer Time, or Legal Time in certain countries. The
- following table shows the changes in time zone rules for the eastern
- United States starting from 1967. Each line represents a description
+ following table shows the changes in time zone rules for New York City
+ starting from 1967. Each line represents a description
or rule for a particular observance.
Effective Observance Rule
@@ -3368,11 +3369,22 @@
the time in question, and using the offset value from that
observance.
+ [TZ] is an informal, public-domain collection of time zone
+ information, which is currently being maintained by volunteer
+ Internet participants, and is used in several operating systems.
+ This database contains current and historical time zone information
+ for a wide variety of locations around the globe; it provides a
+ time zone identifier for every unique time zone rule set in actual
+ use since 1970, with historical data going back to the introduction
+ of standard time.
+
The top-level properties in a "VTIMEZONE" calendar component are:
The mandatory "TZID" property is a text value that uniquely
identifies the VTIMZONE calendar component within the scope of an
- iCalendar object.
+ iCalendar object. The name SHOULD should be the name of a time
+ zone in [TZ], and the other "VTIMEZONE" properties SHOULD define a
+ subset of the rules given in [TZ].
The optional "LAST-MODIFIED" property is a UTC value that specifies
the date and time that this time zone definition was last updated.
@@ -3392,7 +3404,7 @@
"TZOFFSETFROM" is combined with "DTSTART" to define the effective
onset for the time zone sub-component definition. For example, the
following represents the time at which the observance of Standard
- Time took effect in Fall 1967 for the eastern United States:
+ Time took effect in Fall 1967 for New York City:
DTSTART:19671029T020000
@@ -3445,8 +3457,8 @@
Example: The following are examples of the "VTIMEZONE" calendar
component:
- This is an example showing time zone information for the Eastern
- United States using "RDATE" property. Note that this is only suitable
+ This is an example showing time zone information for New York City
+ using the "RDATE" property. Note that this is only suitable
for a recurring event that starts on or later than April 6, 1997 at
03:00:00 EDT (i.e., the earliest effective transition date and time)
and ends no later than April 7, 1998 02:00:00 EST (i.e., latest valid
@@ -3455,7 +3467,7 @@
starting June 1, 1997, ending December 31, 1997.
BEGIN:VTIMEZONE
- TZID:America-New_York
+ TZID:America/New_York
LAST-MODIFIED:19870101T000000Z
BEGIN:STANDARD
DTSTART:19971026T020000
@@ -3481,16 +3493,16 @@
END:DAYLIGHT
END:VTIMEZONE
- This is a simple example showing the current time zone rules for the
- Eastern United States using a RRULE recurrence pattern. Note that
+ This is a simple example showing the current time zone rules for
+ New York City using a RRULE recurrence pattern. Note that
there is no effective end date to either of the Standard Time or
Daylight Time rules. This information would be valid for a recurring
event starting today and continuing indefinitely.
BEGIN:VTIMEZONE
- TZID:America-New_York
+ TZID:America/New_York
LAST-MODIFIED:19870101T000000Z
- TZURL:http://zones.stds_r_us.net/tz/America-New_York
+ TZURL:http://zones.stds_r_us.net/tz/America/New_York
BEGIN:STANDARD
DTSTART:19671029T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
@@ -3507,12 +3519,12 @@
END:DAYLIGHT
END:VTIMEZONE
- This is an example showing a fictitious set of rules for the Eastern
- United States, where the Daylight Time rule has an effective end date
+ This is an example showing a fictitious set of rules for New York City
+ where the Daylight Time rule has an effective end date
(i.e., after that date, Daylight Time is no longer observed).
BEGIN:VTIMEZONE
- TZID:America-New_York
+ TZID:America/New_York
LAST-MODIFIED:19870101T000000Z
BEGIN:STANDARD
DTSTART:19671029T020000
@@ -3538,13 +3550,13 @@
Internet Draft C&S Core Object Specification June 29, 1998
- This is an example showing a fictitious set of rules for the Eastern
- United States, where the first Daylight Time rule has an effective
+ This is an example showing a fictitious set of rules for New York City,
+ where the first Daylight Time rule has an effective
end date. There is a second Daylight Time rule that picks up where
the other left off.
BEGIN:VTIMEZONE
- TZID:America-New_York
+ TZID:America/New_York
LAST-MODIFIED:19870101T000000Z
BEGIN:STANDARD
DTSTART:19671029T020000
@@ -4974,14 +4986,14 @@
Example: The following are examples of non-globally unique time zone
identifiers:
- TZID:America-New_York
+ TZID:America/New_York
- TZID:California-Los_Angeles
+ TZID:America/Los_Angeles
The following is an example of a globally unique time zone
identifier:
- TZID:/US-New_York-New_York
+ TZID:/America/New_York
4.8.3.2 Time Zone Name
@@ -5139,7 +5151,7 @@
Example: The following is an example of this property:
- TZURL:http://timezones.r.us.net/tz/US-California-Los_Angeles
+ TZURL:http://timezones.r.us.net/tz/America/Los_Angeles
@@ -5867,7 +5879,7 @@
RDATE:19970714T123000Z
- RDATE;TZID=US-EASTERN:19970714T083000
+ RDATE;TZID=America/New_York:19970714T083000
RDATE;VALUE=PERIOD:19960403T020000Z/19960403T040000Z,
19960404T010000Z/PT3H
@@ -5938,11 +5950,11 @@
rrulparam = *(";" xparam)
- Example: All examples assume the Eastern United States time zone.
+ Example: All examples assume New York City time.
Daily for 10 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=DAILY;COUNT=10
==> (1997 9:00 AM EDT)September 2-11
@@ -5956,7 +5968,7 @@
Internet Draft C&S Core Object Specification June 29, 1998
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=DAILY;UNTIL=19971224T000000Z
==> (1997 9:00 AM EDT)September 2-30;October 1-25
@@ -5964,7 +5976,7 @@
Every other day - forever:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=DAILY;INTERVAL=2
==> (1997 9:00 AM EDT)September2,4,6,8...24,26,28,30;
October 2,4,6...20,22,24
@@ -5973,14 +5985,14 @@
Every 10 days, 5 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID/America/New_York:19970902T090000
RRULE:FREQ=DAILY;INTERVAL=10;COUNT=5
==> (1997 9:00 AM EDT)September 2,12,22;October 2,12
Everyday in January, for 3 years:
- DTSTART;TZID=America-New York:19980101T090000
+ DTSTART;TZID=America/New_York:19980101T090000
RRULE:FREQ=YEARLY;UNTIL=20000131T090000Z;
BYMONTH=1;BYDAY=SU,MO,TU,WE,TH,FR,SA
or
@@ -5992,7 +6004,7 @@
Weekly for 10 occurrences
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=WEEKLY;COUNT=10
==> (1997 9:00 AM EDT)September 2,9,16,23,30;October 7,14,21
@@ -6000,7 +6012,7 @@
Weekly until December 24, 1997
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=WEEKLY;UNTIL=19971224T000000Z
==> (1997 9:00 AM EDT)September 2,9,16,23,30;October 7,14,21
@@ -6009,7 +6021,7 @@
Every other week - forever:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
Dawson/Stenerson 97 Expires January 1999
@@ -6028,7 +6040,7 @@
Weekly on Tuesday and Thursday for 5 weeks:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=WEEKLY;UNTIL=19971007T000000Z;WKST=SU;BYDAY=TU,TH
or
RRULE:FREQ=WEEKLY;COUNT=10;WKST=SU;BYDAY=TU,TH
@@ -6038,7 +6050,7 @@
Every other week on Monday, Wednesday and Friday until December 24,
1997, but starting on Tuesday, September 2, 1997:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=WEEKLY;INTERVAL=2;UNTIL=19971224T000000Z;WKST=SU;
BYDAY=MO,WE,FR
==> (1997 9:00 AM EDT)September 2,3,5,15,17,19,29;October
@@ -6048,14 +6060,14 @@
Every other week on Tuesday and Thursday, for 8 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=8;WKST=SU;BYDAY=TU,TH
==> (1997 9:00 AM EDT)September 2,4,16,18,30;October 2,14,16
Monthly on the 1st Friday for ten occurrences:
- DTSTART;TZID=America-New York:19970905T090000
+ DTSTART;TZID=America/New_York:19970905T090000
RRULE:FREQ=MONTHLY;COUNT=10;BYDAY=1FR
==> (1997 9:00 AM EDT)September 5;October 3
@@ -6065,7 +6077,7 @@
Monthly on the 1st Friday until December 24, 1997:
- DTSTART;TZID=America-New York:19970905T090000
+ DTSTART;TZID=America/New_York:19970905T090000
RRULE:FREQ=MONTHLY;UNTIL=19971224T000000Z;BYDAY=1FR
==> (1997 9:00 AM EDT)September 5;October 3
@@ -6083,7 +6095,7 @@
Every other month on the 1st and last Sunday of the month for 10
occurrences:
- DTSTART;TZID=America-New York:19970907T090000
+ DTSTART;TZID=America/New_York:19970907T090000
RRULE:FREQ=MONTHLY;INTERVAL=2;COUNT=10;BYDAY=1SU,-1SU
==> (1997 9:00 AM EDT)September 7,28
@@ -6093,7 +6105,7 @@
Monthly on the second to last Monday of the month for 6 months:
- DTSTART;TZID=America-New York:19970922T090000
+ DTSTART;TZID=America/New_York:19970922T090000
RRULE:FREQ=MONTHLY;COUNT=6;BYDAY=-2MO
==> (1997 9:00 AM EDT)September 22;October 20
@@ -6102,7 +6114,7 @@
Monthly on the third to the last day of the month, forever:
- DTSTART;TZID=America-New York:19970928T090000
+ DTSTART;TZID=America/New_York:19970928T090000
RRULE:FREQ=MONTHLY;BYMONTHDAY=-3
==> (1997 9:00 AM EDT)September 28
@@ -6112,7 +6124,7 @@
Monthly on the 2nd and 15th of the month for 10 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=MONTHLY;COUNT=10;BYMONTHDAY=2,15
==> (1997 9:00 AM EDT)September 2,15;October 2,15
@@ -6121,7 +6133,7 @@
Monthly on the first and last day of the month for 10 occurrences:
- DTSTART;TZID=America-New York:19970930T090000
+ DTSTART;TZID=America/New_York:19970930T090000
RRULE:FREQ=MONTHLY;COUNT=10;BYMONTHDAY=1,-1
==> (1997 9:00 AM EDT)September 30;October 1
@@ -6131,7 +6143,7 @@
Every 18 months on the 10th thru 15th of the month for 10
occurrences:
- DTSTART;TZID=America-New York:19970910T090000
+ DTSTART;TZID=America/New_York:19970910T090000
RRULE:FREQ=MONTHLY;INTERVAL=18;COUNT=10;BYMONTHDAY=10,11,12,13,14,
15
@@ -6148,7 +6160,7 @@
Every Tuesday, every other month:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=MONTHLY;INTERVAL=2;BYDAY=TU
==> (1997 9:00 AM EDT)September 2,9,16,23,30
@@ -6158,7 +6170,7 @@
Yearly in June and July for 10 occurrences:
- DTSTART;TZID=America-New York:19970610T090000
+ DTSTART;TZID=America/New_York:19970610T090000
RRULE:FREQ=YEARLY;COUNT=10;BYMONTH=6,7
==> (1997 9:00 AM EDT)June 10;July 10
@@ -6171,7 +6183,7 @@
Every other year on January, February, and March for 10 occurrences:
- DTSTART;TZID=America-New York:19970310T090000
+ DTSTART;TZID=America/New_York:19970310T090000
RRULE:FREQ=YEARLY;INTERVAL=2;COUNT=10;BYMONTH=1,2,3
==> (1997 9:00 AM EST)March 10
@@ -6181,7 +6193,7 @@
Every 3rd year on the 1st, 100th and 200th day for 10 occurrences:
- DTSTART;TZID=America-New York:19970101T090000
+ DTSTART;TZID=America/New_York:19970101T090000
RRULE:FREQ=YEARLY;INTERVAL=3;COUNT=10;BYYEARDAY=1,100,200
==> (1997 9:00 AM EST)January 1
@@ -6194,7 +6206,7 @@
Every 20th Monday of the year, forever:
- DTSTART;TZID=America-New York:19970519T090000
+ DTSTART;TZID=America/New_York:19970519T090000
RRULE:FREQ=YEARLY;BYDAY=20MO
@@ -6213,7 +6225,7 @@
Monday of week number 20 (where the default start of the week is
Monday), forever:
- DTSTART;TZID=America-New York:19970512T090000
+ DTSTART;TZID=America/New_York:19970512T090000
RRULE:FREQ=YEARLY;BYWEEKNO=20;BYDAY=MO
==> (1997 9:00 AM EDT)May 12
@@ -6223,7 +6235,7 @@
Every Thursday in March, forever:
- DTSTART;TZID=America-New York:19970313T090000
+ DTSTART;TZID=America/New_York:19970313T090000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=TH
==> (1997 9:00 AM EST)March 13,20,27
@@ -6233,7 +6245,7 @@
Every Thursday, but only during June, July, and August, forever:
- DTSTART;TZID=America-New York:19970605T090000
+ DTSTART;TZID=America/New_York:19970605T090000
RRULE:FREQ=YEARLY;BYDAY=TH;BYMONTH=6,7,8
==> (1997 9:00 AM EDT)June 5,12,19,26;July 3,10,17,24,31;
@@ -6246,8 +6258,8 @@
Every Friday the 13th, forever:
- DTSTART;TZID=America-New York:19970902T090000
- EXDATE;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
+ EXDATE;TZID=America/New_York:19970902T090000
RRULE:FREQ=MONTHLY;BYDAY=FR;BYMONTHDAY=13
==> (1998 9:00 AM EST)February 13;March 13;November 13
@@ -6266,7 +6278,7 @@
Internet Draft C&S Core Object Specification June 29, 1998
- DTSTART;TZID=America-New York:19970913T090000
+ DTSTART;TZID=America/New_York:19970913T090000
RRULE:FREQ=MONTHLY;BYDAY=SA;BYMONTHDAY=7,8,9,10,11,12,13
==> (1997 9:00 AM EDT)September 13;October 11
@@ -6278,7 +6290,7 @@
Every four years, the first Tuesday after a Monday in November,
forever (U.S. Presidential Election day):
- DTSTART;TZID=America-New York:19961105T090000
+ DTSTART;TZID=America/New_York:19961105T090000
RRULE:FREQ=YEARLY;INTERVAL=4;BYMONTH=11;BYDAY=TU;BYMONTHDAY=2,3,4,
5,6,7,8
@@ -6290,7 +6302,7 @@
The 3rd instance into the month of one of Tuesday, Wednesday or
Thursday, for the next 3 months:
- DTSTART;TZID=America-New York:19970904T090000
+ DTSTART;TZID=America/New_York:19970904T090000
RRULE:FREQ=MONTHLY;COUNT=3;BYDAY=TU,WE,TH;BYSETPOS=3
==> (1997 9:00 AM EDT)September 4;October 7
@@ -6298,7 +6310,7 @@
The 2nd to last weekday of the month:
- DTSTART;TZID=America-New York:19970929T090000
+ DTSTART;TZID=America/New_York:19970929T090000
RRULE:FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-2
==> (1997 9:00 AM EDT)September 29
@@ -6308,14 +6320,14 @@
Every 3 hours from 9:00 AM to 5:00 PM on a specific day:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=HOURLY;INTERVAL=3;UNTIL=19970902T170000Z
==> (September 2, 1997 EDT)09:00,12:00,15:00
Every 15 minutes for 6 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=MINUTELY;INTERVAL=15;COUNT=6
==> (September 2, 1997 EDT)09:00,09:15,09:30,09:45,10:00,10:15
@@ -6330,14 +6342,14 @@
Every hour and a half for 4 occurrences:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=MINUTELY;INTERVAL=90;COUNT=4
==> (September 2, 1997 EDT)09:00,10:30;12:00;13:30
Every 20 minutes from 9:00 AM to 4:40 PM every day:
- DTSTART;TZID=America-New York:19970902T090000
+ DTSTART;TZID=America/New_York:19970902T090000
RRULE:FREQ=DAILY;BYHOUR=9,10,11,12,13,14,15,16;BYMINUTE=0,20,40
or
RRULE:FREQ=MINUTELY;INTERVAL=20;BYHOUR=9,10,11,12,13,14,15,16
@@ -6351,14 +6363,14 @@
An example where the days generated makes a difference because of
WKST:
- DTSTART;TZID=America-New York:19970805T090000
+ DTSTART;TZID=America/New_York:19970805T090000
RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=MO
==> (1997 EDT)Aug 5,10,19,24
changing only WKST from MO to SU, yields different results...
- DTSTART;TZID=America-New York:19970805T090000
+ DTSTART;TZID=America/New_York:19970805T090000
RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=SU
==> (1997 EDT)August 5,17,19,31
@@ -6963,14 +6975,14 @@
The following example specifies a group scheduled meeting that begin
at 8:30 AM EST on March 12, 1998 and end at 9:30 AM EST on March 12,
1998. The "Organizer" has scheduled the meeting with one or more
- calendar users in a group. A time zone specification for Eastern
- United States has been specified.
+ calendar users in a group. A time zone specification for New York
+ City has been specified.
BEGIN:VCALENDAR
PRODID:-//RDU Software//NONSGML HandCal//EN
VERSION:2.0
BEGIN:VTIMEZONE
- TZID:Eastern US
+ TZID:America/New_York
BEGIN:STANDARD
DTSTART:19981025T020000
RDATE:19981025T020000
@@ -6997,8 +7009,8 @@
CLASS:PUBLIC
CREATED:19980309T130000Z
SUMMARY:XYZ Project Review
- DTSTART;TZID=US-Eastern:19980312T083000
- DTEND;TZID=US-Eastern:19980312T093000
+ DTSTART;TZID=America/New_York:19980312T083000
+ DTEND;TZID=America/New_York:19980312T093000
LOCATION:1CP Conference Room 4350
END:VEVENT
END:VCALENDAR
@@ -7424,6 +7436,9 @@
[RFC 2279] "UTF-8, a transformation format of ISO 10646", RFC 2279,
January 1998.
+
+ [TZ] Olson, A.D., et al, Time zone code and data,
+ ftp://elsie.nci.nih.gov/pub/, updated periodically.
[VCARD] Internet Mail Consortium, "vCard - The Electronic Business
Card Version 2.1", http://www.imc.org/pdi/vcard-21.txt, September
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