Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-27 Thread Tim Cross
"Thomas S. Dye" writes: > No, I don't think you've missed anything significant. Thanks very much for > your patience > during a discussion that was interesting for me. I learned quite a bit from > you and the > other contributors to the thread and look forward now to learning how Org > mode

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-26 Thread Thomas S. Dye
Aloha Max, Max Nikulin writes: On 23/01/2023 23:04, Thomas S. Dye wrote: * Kinds of event - No-host event :: An event that takes place at an absolute time. Participants must know their local timezone offset from UTC. Example [2023-01-23 06:00@UTC]. - Situated event :: An event that takes

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-26 Thread Max Nikulin
On 23/01/2023 23:04, Thomas S. Dye wrote: * Kinds of event - No-host event :: An event that takes place at an absolute time. Participants must know their local timezone offset from UTC. Example [2023-01-23 06:00@UTC]. - Situated event :: An event that takes place at a time local to the event

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Jean Louis
* Max Nikulin [2023-01-24 20:12]: > On 22/01/2023 14:48, Tim Cross wrote: > > Timestamp for a log > > record I would probably want or one of the > > variants because the most common way I use those types of timestamp is > > in diagnosing problems and comparing revords from various locations > >

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Jean Louis
* Max Nikulin [2023-01-24 07:51]: > On 24/01/2023 09:44, Thomas S. Dye wrote: > > Max Nikulin writes: > > > > > > I believed that [2023-01-22 Sun 08:29@+1100] unambiguously suggests > > > offset from UTC. > > > > Not for a casual programmer like me. The timestamp alone might easily be > > read

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Tim Cross
Max Nikulin writes: > On 22/01/2023 14:48, Tim Cross wrote: >> Timestamp for a log >> record I would probably want or one of the >> variants because the most common way I use those types of timestamp is >> in diagnosing problems and comparing revords from various locations >> where I don't care

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Max Nikulin
On 22/01/2023 14:48, Tim Cross wrote: Timestamp for a log record I would probably want or one of the variants because the most common way I use those types of timestamp is in diagnosing problems and comparing revords from various locations where I don't care about the local time where the

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Thomas S. Dye
Aloha Ihor, Ihor Radchenko writes: "Thomas S. Dye" writes: I understand above that it is easier understandable when reading [2023-01-22 Sun 08:29@+1100] as it is assumed by poster (I guess Max) that user will understand that there is +11 hours ahead. Yes, the offset here is

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-24 Thread Ihor Radchenko
"Thomas S. Dye" writes: >> I understand above that it is easier understandable when reading >> [2023-01-22 Sun 08:29@+1100] as it is assumed by poster (I guess >> Max) >> that user will understand that there is +11 hours ahead. >> > Yes, the offset here is ambiguous--is it offset from some

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-23 Thread Max Nikulin
On 24/01/2023 09:44, Thomas S. Dye wrote: Max Nikulin writes: I believed that [2023-01-22 Sun 08:29@+1100] unambiguously suggests offset from UTC. Not for a casual programmer like me. The timestamp alone might easily be read as 11 hours ahead of local time. Nevertheless, Org is certainly

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-23 Thread Thomas S. Dye
Aloha Max, Max Nikulin writes: On 23/01/2023 23:04, Thomas S. Dye wrote: I understand above that it is easier understandable when reading [2023-01-22 Sun 08:29@+1100] as it is assumed by poster (I guess Max) that user will understand that there is +11 hours ahead. Yes, the offset here is

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-23 Thread Max Nikulin
On 23/01/2023 23:04, Thomas S. Dye wrote: I understand above that it is easier understandable when reading [2023-01-22 Sun 08:29@+1100] as it is assumed by poster (I guess Max) that user will understand that there is +11 hours ahead. Yes, the offset here is ambiguous--is it offset from some

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-23 Thread Thomas S. Dye
Aloha Jean Louis, Jean Louis writes: * Thomas S. Dye [2023-01-22 20:36]: > After all, for a person in Berlin [2023-01-22 Sun > 08:29@+1100] may > tell more than [2023-01-22 Sun 08:29@Australia/Sydney]. I'm not sure to follow this. IIUC, the timestamp with offset refers to absolute time,

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-22 Thread Jean Louis
* Thomas S. Dye [2023-01-22 20:36]: > > After all, for a person in Berlin [2023-01-22 Sun 08:29@+1100] may > > tell more than [2023-01-22 Sun 08:29@Australia/Sydney]. > > I'm not sure to follow this. IIUC, the timestamp with offset refers to > absolute time, whereas the timestamp with the

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-22 Thread Thomas S. Dye
Aloha Max, Max Nikulin writes: Thomas, notice that I resumed a postponed earlier part of discussion related to timestamps in the past. Offset from UTC is almost always well defined this case. My perception is that discussing timestamps in future, we came to agreement with Tom that

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-22 Thread Max Nikulin
Thomas, notice that I resumed a postponed earlier part of discussion related to timestamps in the past. Offset from UTC is almost always well defined this case. My perception is that discussing timestamps in future, we came to agreement with Tom that timestamps can be specified with timezone

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-22 Thread Tim Cross
Max Nikulin writes: > On 22/01/2023 04:29, Tim Cross wrote: >> Max Nikulin writes: >>> - UTC is a recommendation for planning when participants are scattered over >>> multiple >>> timezones. >>> - You admit that some timestamps in your files may be specified as time >>> zone identifier + >>>

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-21 Thread Thomas S. Dye
Aloha Max, Max Nikulin writes: Let's consider the following timestamp [2023-01-22 Sun 08:29@+1100] "@" is unimportant here, I take it from Ihor's examples. This timestamp is from the "Date:" header of your message. It is not UTC, but in my opinion it is equally precise (disregarding

Re: UTC or not UTC for timestamps in the past ([FEATURE REQUEST] Timezone support in org-mode)

2023-01-21 Thread Max Nikulin
On 22/01/2023 04:29, Tim Cross wrote: Max Nikulin writes: - UTC is a recommendation for planning when participants are scattered over multiple timezones. - You admit that some timestamps in your files may be specified as time zone identifier + local time relative to this zone. - In both