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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1answer
54 views

Automatically update a date in tangled files of an .org file?

I'm in the process of writing a LaTeX class using org-babel for the literate programming. In several places of the file .org file, I have to insert the release date of this class, at least in the ...
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2answers
48 views

Is there a way to have in a org-mode file a placeholder for the current date automatically updated when saved?

(I'm aware of "Creating timestamps", but my point is to automatically update such timestamps distributed in several places in the file.) I'd like to have in a org-mode file a kind of ...
0
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1answer
18 views

org-mode not showing entries with timestamp

I have the following entry in an org-mode file running emacs 26.3 freshly installed: ** lorem ipsum <2021-05-09 Sun> When opening the agenda or clicking the date there will be no entry in ...
1
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1answer
61 views

How to create humanly readable delta between two times?

Given two times (in the format returned by (current-time)), does Emacs have a way to convert this to a humanly readable delta? Examples could include: 3 days. 2 weeks, 3 days. 3 hours, 2 minutes. ...
4
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1answer
148 views

How to subtract time values formatted as “HH:mm”?

I want to subtract time values like 12:04 from 11:30 and get 34 minutes or 0:34. I tried to achieve this using calculations like (time-subtract (parse-time-string "12:04") (parse-time-...
1
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1answer
59 views

How to compare date strings?

I have a LaTeX package declared with a date: \usepackage{foo}[=2021-04-01] and I need to check if this date is before or after "2021-03-01". Is there a way to compare dates, like (if (< ...
0
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1answer
77 views

How to calculate time durations in tables?

How to calculate time durations in tables? Subtraction of numerical vectors works directly: | day | t1 | t2 | differences | |------------------+----------+----------+----------...
0
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0answers
29 views

add date to org-export filename

Is there any way to add the date specified with #+DATE to #+export_file_name? for example my buffer is named buffer and I want the result to be named 0401_buffer.pdf, so something like #+...
1
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1answer
64 views

TODO item for paying credit card bill 3 weeks after statement date

My credit card bill is due 3 weeks after the statement date. The statement date is always the 20th of the month. Due to the variable lengths of months, the due date is not always on the same day. I'd ...
1
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1answer
33 views

How to display atime, ctime and mtime of a file in the modeline?

The modeline at the bottom already displays valuable information about the current buffer, like the EOL type (LF), the encoding (UTF-8)… Now when I open a file, I would find it very handy to also ...
0
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0answers
17 views

World time converter under emacs and/or orgmode

Is there a World time converter under emacs and/or orgmode? As everything moves online, it occurs more often than before that I want to schedule in orgmode an online event which occurs in some other ...
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0answers
5 views

Strange sorting behavior for missing deadline and scheduled dates in org-agenda-sorting-strategy?

Running fresh (emacs -q), with the following org-mode items: * TODO item 1 DEADLINE: <2021-03-01 Mon> SCHEDULED: <2021-02-27 Sat> * TODO item 2 SCHEDULED: <2021-02-28 Sun> * TODO ...
0
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1answer
21 views

Filtering list of files to those recently edited

Suppose I have a list of files: (setq files '("/path/to/file1" ...)) Is there a way to reduce this list to only those files which were edited within the past, say, 10 days?
1
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1answer
34 views

org-agenda jumps to the wrong month

If I try to jump (using "j") in org-agenda to the month September, it sometimes takes me to January. I am using org 9.4.4. If I type any of these configurations, I am still going to January: ...
0
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0answers
31 views

Emacs current-time value and Windows RealTimeIsUniversal

I have linux and windows dual booted on pc and linux is using utc as default while windows registry is set to yield utc time by setting qword:00000001 to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\...
0
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0answers
28 views

Extract year from different date strings in alist

I have a function that tries to extract the year from date strings stored in an alist below: (setq entry '(("date" . "1998/03") ("origdate" . "1930"))) (...
2
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2answers
193 views

Inserting timestamp in mini buffer in Emacs

I keep on saving various org files in their respective folders using Filename as YYYY-MM-DD.org files . So I ended up typing C-x C-w 2020-10-06.org at least thirty times today. Can this process be ...
0
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1answer
63 views

parse-time-string: doesn't accept ISO 8601 string contrary to what the documentation claim

The documentation suggests that parse-time-string can be fed ISO 8601 string, such as "1998-09-12T12:21:54-0200". However, (parse-time-string "1998-09-12T12:21:54-0200") returns (...
1
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0answers
68 views

Setting (setq system-time-locale “C”) in daemon ineffective

I try to set the time locale to "C" in my config via (setq system-time-locale "C"). However, when using the emacs --daemon, it is not set properly and I end up with non-english ...
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0answers
55 views

Get current time zone in IANA time zone format (a.k.a. Olson format)?

I know that current-time-zone can be called to obtain the current time zone. On my system, this returns (-25200 "PDT"). However, I would like to get the current time zone in IANA format, ...
0
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1answer
43 views

Calculating pace

I'm using org-mode tables to record workouts and would like to calculate the pace I achieve on runs/cycling. I've read the org spreadsheets introduction and found a thread about calculating units but ...
1
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1answer
108 views

How to insert the current date into a file using abbrev or similar?

I'd like to replicate something in emacs that I do in AutoHotkey all the time: type td have that string be replaced with the current date I'm trying to do this with Emacs abbrevs but I'm running ...
2
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1answer
225 views

How remove active date from a dynamic block using columnview

This post explains how you can setup dynamic blocks to create tables based on meeting minutes. In short, you can extract the TODOs of the minutes and put them in a table of actions like so: * ...
1
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1answer
169 views

Org (and org-capture) uses English for calendar dates, no matter what I do

The problem: When I use org-capture to write on my journal, it writes the month as April and the day as Friday. But everything in my system is in Portuguese, so it should be "abril" for the month, ...
3
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2answers
127 views

Check whether a string is a date in a specific format, e.g. “%Y-%m-%d”

I have a string and would like to check whether it contains a date in a given date format, e.g. "%Y-%m-%d", with format as for format-time-string. This is for a package and users can configure the ...
2
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1answer
82 views

Hide org-table rows outside certain date ranges?

Excel tables lets us show just the rows that have "July 2018" in a specific column, and hide the rest. Or to show "21st August 2017-30th August 2017, and also July 2018, and also all of 2019", and ...
0
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1answer
39 views

Diary specific date but displayed in every year

Reference to 31.10.1 The Diary File It provides example as April 15, 2020 Income tax due. M-x calendar to the date of Apr 15, 2020 and strike d, it prompts a buffer as 2020-04-15 Wednesday ==========...
6
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4answers
370 views

Insert an arbitrary timestamp

C-c . could insert the timestamp of the current date and C-u C-c . insert the current datetime. I find it very difficult to insert an arbitrary datetime. Operations over Calendar are invalid since ...
0
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0answers
199 views

Time-formatted output from org-table date- and time calculation?

I have an org-table for my timesheets. Part of it looks this: | Start | End | End - Start | | <2020-03-05 10:00> | <2020-03-05 Thu 14:30> | 0.1875 | #+...
0
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2answers
85 views

org-capture scheduled for next Tuesday (or Friday)

I'd like to create a capture template that automatically schedules the date for the upcoming Friday (if today is a Tuesday, Wednesday, Thursday) or for the upcoming Tuesday (if today is a Friday, ...
0
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1answer
35 views

Insert inactive date with elisp function including date arithmetic

For a capture template I want to insert inactive dates for the upcoming week (without a prompt). In this format (no time component): [2020-02-10 Mo] I've figured out that I could do something like ...
3
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2answers
184 views

Apply different function to each element in list?

I have a time-stamp of a video formatted as "00:00:00,000" such that "%H:%M:%s,%3N". I am want to eventually use this timestamp as part of an in-interval-p function where I take two timestamps and a ...
4
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2answers
135 views

Easily update dates for a recurrent set of TODOs in org mode

Every semester I teach the same course and for every semester there are several TODOs that should, at least initially, have the same dates relative to the starting date (i.e. the first day of class). ...
3
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1answer
450 views

org column view with date calculations

* TODO fix this bug asap :PROPERTIES: :UPDATE: writing test cases almost there! :LASTUPDATED: 2019-11-25 :DEADLINE: 2019-11-30 :END: * TODO update that documentation :PROPERTIES: :UPDATE: updating my ...
1
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0answers
48 views

Sorting org files in Emacs Dired on the basis of the org time stamp in the file itself

Is there a way of sorting org files (.org) in Emacs Dired on the basis of the org time stamp in the file itself. With every org file I create, I insert an org time stamp near the top of the file. This ...
2
votes
1answer
151 views

Customising the increments in an org-mode timestamp

When I create an appointment in org-agenda I make use of timestamps. The item is created with today's date and time and I then place my cursor on the date and time respectively and use S-up or S-down ...
3
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2answers
305 views

How to set schedule and deadline for entires being inserted via org-capture template file?

I'm trying to leverage the power of org capture templates. There are a few tasks I know I will be scheduling on particular dates of the month. Setting their schedule and deadline in the capture ...
0
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1answer
56 views

Programmatic way of calculating end of week/month/year

I'm trying to build functions that help me execute frequent sparse tree queries, using org-match-sparse-tree nil "<some_query>" in my code. Some of these queries need to contain constraints ...
1
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2answers
60 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’...
1
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1answer
48 views

Let org-timestamp-up/down work on non-timestamp

So in org-mode, shift-up and shift-down works on timestamps. Is there a way to let it work on arbitrary dates in the text that is not a timestamp? For example if I write The date is 2019-01-01. ...
0
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1answer
55 views

test if a file has been updated within the current day

As I consume a lot of drugs, I created an org-mode file that updates the status of my stock every day. It is done at the start of Emacs and it slows down significantly. As I sometimes run Emacs on a ...
0
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1answer
18 views

Additionally factor like 0.33 mail after enable to display time in linemode

I enabled time-show on the line-mode following the instruction of EmacsWiki: Display Time (display-time-mode 1) The single line was appended and it take effects but has side outputs Additionally ...
2
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2answers
560 views

Table formula for dates delta

Here my org table: | | Start date | End date | State | Duration | |---+------------------------+------------------------+-------+----------| | # | <2019-01-02 Wed 10:...
0
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1answer
86 views

Convert durations to start times

Problem I have some org-mode tables with a column containing the duration (or length) of musical tracks: |---+---------------------------------+-----------------------------------+----------| | # | ...
1
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1answer
277 views

Determining the string formats for datetime-timezone

When loading a .log file I get the message Warning (emacs): Failed to determine system timezone; consider customizing ‘datetime-timezone’ variable Going to the customization menu, the options are ...
0
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2answers
261 views

elisp timedelta output format

When try to print timedelta as below: #+BEGIN_SRC elisp :results output (print (time-subtract (parse-time-string "2018-10-20 08:50:36.343") (parse-time-string "2018-10-20 08:47:43.029"))) #+...
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0answers
87 views

Strategy for using Emacs as an event log?

I'd like to be able to use Emacs to track various events in my day-to-day life, such as paying a bill, going to an appointment, replacing oil, etc. The goal would be to be able to view this event in ...
1
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1answer
99 views

How to make implicit link target from timestamp in org-mode?

In org-mode I usually create several notes with timestamps under a headline, for example: * idea [2018-09-26 Wed 09:39] \\ General description of idea. ** idea development [2018-09-26 Wed 09:...
2
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1answer
186 views

How to add a time and a time interval in calc-mode?

How do I use calc to add a time interval to a moment in time (i.e., a date, or a time)? For instance, say I want to know what the time and day will be 8,000 minutes into the future? I know that t N ...
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0answers
31 views

Logbook clock entries as active/inactive time stamps in icalendar export

Is there a way to automatically have active/inactive timestamps updated in the body of the org node? My final goal is to have the clock entries included as events in icalendar export. Alternatively ...