Questions tagged [time-date]

is for time of day, handling date and time formats, interfacing with the operating system for date and time values, converting time zones, and calculating date and time arithmetic.

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votes
2answers
324 views

Table formula for dates delta

Here my org table: | | Start date | End date | State | Duration | |---+------------------------+------------------------+-------+----------| | # | <2019-01-02 Wed 10:...
9
votes
1answer
1k views

Specify timezone in Org date format

When I write something like this: <2015-07-05 Sun 20:00 GMT+0>, and then try to edit it by pressing C-c ., Org removes the GMT+0 part. So, I think it's in a wrong format. Note: I don't want to ...
10
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2answers
1k views

Parsing formatted time string (inverse of format-time-string)

The format-time-string function takes a time argument like '(21761 64499 350937 0) and a format string like "%y-%m-%d %a %H:%M" and returns something like "15-03-12 Thu 16:49". What is the inverse ...
8
votes
3answers
3k views

in org-mode, how to insert timestamp with today's date?

In a Lisp function, how do I instruct org to automatically insert a timestamp with today's date? I found the function org-insert-time-stamp, but I don't know how to provide an argument for it that ...
1
vote
2answers
334 views

The time of the last change of the current buffer

Can Emacs determine the time of the last change (or the last edit) done to the current buffer? The buffer may has been saved or not.
1
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0answers
117 views

Can Ibuffer show buffers last viewing time?

I was wondering if it is possible to have a column in Ibuffer that shows the last viewing time. In the default view I can see these columns: MR Name Size Mode Filename/...
8
votes
2answers
977 views

Counting the number of days that have passed since a certain date

I have an org-mode document in which I wish to keep track of the number of days that have passed since a certain date. Is there a built in function for this, or will I be forced to write a custom ...
6
votes
2answers
1k views

Multiple Scheduled Timestamps for One Task

Suppose I want to be reminded to water my plants on Monday, Wednesday, and Friday, AND on any of the following days, if for some reason I miss the scheduled days. I originally tried the following: **...
3
votes
2answers
872 views

Show time in different time zones

I take a lot of different MOOC and each class declare own deadline relative to some time zone. Are there any Emacs mode that show date/time in buffer for several selected time zones in same time? I ...
2
votes
1answer
107 views

How to retrieve the date under the cursor in emacs calendar as the format day.month.year like 15.07.2018

Is there a way to retrieve the date under the cursor in emacs calendar as the format day.month.year like 05.07.2018 as a clipboard content?
1
vote
2answers
186 views

How do I pick a date in my new major mode?

I want to insert a date in the current buffer. I know the function calendar-cursor-to-date that when invoked gives back the date at which the cursor is. But how do I get that info back into my ...
1
vote
2answers
36 views

How to interpret buffer-display-time values?

I am trying to use buffer-display-time var, in order to come with a solution for this question. Having a look at the documentation, I get this: buffer-display-time is a variable defined in ‘buffer.c’...
0
votes
1answer
157 views

how to detect selection in date mode?

I want to write a mode for ledger. The first thing I want to do is to be able to insert date stamps. There is a very nice mode in Emacs called calendar. I want to be able to select a date within it. ...
0
votes
1answer
101 views

Count down timer whenever file is opened

C-C C-x ; can start count down timer. But I want to start the timer whenever I open any org file. I want to set it default for 10 minute. Kindly help