pdd
(Python3 Date Diff) is a tiny command line utility to calculate date and time difference. It can also be used as a timer. If no program arguments are specified it shows the current date, time and timezone.
pdd
has been written with only one goal - simplicity. Users shouldn't have to memorize anything.
- easy to use, minimal dependencies
- calculate date and time difference
- calculate diff from today and now
- add, subtract duration (timeslice) to/from date (time)
- countdown timer with command piggybacking
- custom resolution stopwatch
- non-verbose mode for background timers
- show current date, time and timezone
- follows ISO 8601
pdd
requires Python 3.8 (or later) and the dateutil
module.
To install dateutil
on Ubuntu, run:
$ sudo apt-get install python3-dateutil
or, using pip3:
$ sudo pip3 install python-dateutil
Install pdd
from your package manager. If the version available is dated try an alternative installation method.
Packages for Arch Linux, CentOS, Debian, Fedora and Ubuntu are available with the latest stable release.
If you have git installed, clone this repository. Otherwise download the latest latest stable release or development version (risky).
Install to default location (/usr/local
):
$ sudo make install
To remove, run:
$ sudo make uninstall
PREFIX
is supported, in case you want to install to a different location.
pdd
is a standalone utility. From the containing directory, run:
$ chmod x pdd
$ ./pdd
usage: pdd [-h] [-d yyyy mmm dd [yyyy mmm dd | y m d]]
[-t hh:mm:ss [hh:mm:ss | h:m:s]] [--add] [--sub]
[--day yyyy mmm dd] [-c hh:mm:ss] [-r command] [-s [resolution]] [-q] [-v]
[keywords ...]
Tiny date, time difference calculator with timers.
positional arguments:
keywords diff/add/subtract from today or now
options:
-h, --help show this help message and exit
-d yyyy mmm dd [yyyy mmm dd | y m d], --date yyyy mmm dd [yyyy mmm dd | y m d]
calculate date difference
-t hh:mm:ss [hh:mm:ss | h:m:s], --time hh:mm:ss [hh:mm:ss | h:m:s]
calculate time difference
--add add to date (/today) or time (/now)
--sub subtract from date (/today) or time (/now)
--day yyyy mmm dd show day of the week on a date
-c hh:mm:ss, --timer hh:mm:ss
start a countdown timer
-r command, --run command
run command when countdown timer reaches 0
-s [resolution], --stopwatch [resolution]
start a stopwatch [default resolution: 3 (ms)]
-q, --quiet quiet mode for background timer/stopwatch
-v, --version show program's version number and exit
Completion scripts are available for Bash, Fish and Zsh shells.
- ISO 8601 format. Month can be specified as month number (e.g. Jan - 1, Dec - 12).
- Time is in 24-hr format.
- The absolute difference is shown. Argument order is ignored.
- The end date is excluded in date difference calculations.
- Hour, minute or second can be omitted. Partial inputs are recognized as
mm:ss
orss
. - The keybind to stop timers is Ctrl-C.
-
Calculate diff from today:
$ pdd 2014 Jan 15 5y 2m 21d 1906d
-
Calculate diff from now:
$ pdd 24:00:00 15:24:03 55443s $ pdd 0 08:36:22 30982s
-
Calculate date diff:
$ pdd -d 1983 jul 3 2014 1 15 30y 6m 12d 11154d
-
Calculate time diff:
$ pdd -t 45:50 6:17:33 05:31:43 19903s
-
Show current date, time and timezone:
$ pdd Fri 2019 Apr 5 08:37:25 IST
-
Specify time with roll-over:
$ pdd -t 5:80:75 6:17:33 00:03:42 222s
-
Add a duration (3 years, 2 months, 1 day) to 28 Feb, 2000:
$ pdd -d 2000 FEB 28 3 2 1 --add Tue 2003 Apr 29
-
Add a timeslice (1 hour 2 mins 3 secs) to 23:45:37:
$ pdd -t 23:45:37 1:2:3 --add 1 day(s) later, 00:47:40 89260s
-
Add a duration (3 years, 2 months, 1 day) to today:
$ pdd 3 2 1 --add Mon 2022 Jun 06
-
Add a timeslice (1 hour 2 minutes 3 seconds) to now:
$ pdd 1:2:3 --add 09:41:26 34886s
-
Subtract a duration (1 day) from 1 Mar, 2000:
$ pdd -d 2000 Mar 01 0 0 1 --sub Tue 2000 Feb 29
-
Subtract a timeslice (1 sec) from midnight:
$ pdd -t 00:00:00 0:0:1 --sub 1 day(s) earlier, 23:59:59 -1s
-
Subtract a duration (3 years, 2 months, 1 day) from today:
$ pdd 3 2 1 --sub Thu 2016 Feb 04
-
Subtract a timeslice (1 hour 2 minutes 3 seconds) from now:
$ pdd 1:2:3 --sub 07:40:02 27602s
-
Show the day of the week on 15 Jan 2014:
$ pdd --day 2014 Jan 15 Wed
-
Start a countdown timer or stopwatch in quiet mode in the background:
$ pdd -qs & $ pdd -qc 3:0:0 &
To see the final counter run
fg
and press Ctrl-C. -
Run a command when countdown timer reaches 0
$ pdd -c 00:00:5 -r 'ps -aux' $ pdd -c 00:00:5 -r 'notify-send pdd "timer expired"'
Copyright © 2017 Arun Prakash Jana