Ubuntu Manpage: undertime - pick a meeting time

NAME

       undertime - pick a meeting time

SYNOPSIS

       undertime    [--start    HOUR]   [--end   HOUR]   [--date   WHEN]   [--colors|--no-colors]
       [--default-zone--no-default-zone] [--config FILE ] [timezones]
       undertime --print-zones

DESCRIPTION

undertime is a program that allows you to quickly pick a meeting time across multiple
timezones for conference calls or other coordinated events. It shows all times of a given
day for all the timezones selected, in a table that aligns the time so a line shows
simultaneous times across all timezones. This takes into account daylight savings and
other peculiarities (provided that the local timezone database is up to date) so you can
also schedule meetings in the future as well.

An educated guess is made to find the relevant timezones: the local timezone is first
guessed and added to the list, then the arguments on the commandline are looked up in the
internal timezone database. Spaces in arguments are replaced by underscores and all-caps
versions of lowercase strings are tried as well. When failing to match a provided timezone
against the internal list, a warning is emitted. A complete list of timezones is shown
when the --print-zones commandline option is provided.

Colors are used to highlight the "work hours" where possible meeting times could overlap
and the current time is marked in bold. Colors are replaced by an underscore suffix and
the current time by a star if colors are disabled. You can change those work hours with
the --start and --end flags. Because daylight savings may actually change time, you can
also use the --date time to pick an arbitrary time for the meeting, using natural language
(as parsed by the parsedatetime library). The current time is also shown, in bold.

OPTIONS

       --start HOUR, -s HOUR
              start of working day, in hours

       --end HOUR, -e HOUR
              end of working day, in hours

       --date WHEN, -d WHEN
              target date for the meeting, supports arbitrary dates like "in two weeks"

       --colors, --no-colors
              show colors. enabled by default if output is a terminal.

       --default-zone, --no-default-zone
              show current timezone first

       --print-zones
              show valid timezones and exit

       --config FILE
              load YAML config FILE as defaults.

       -h, --help
              Show summary of options and defaults

ENVIRONMENT

       TZ     Default timezone.

       NO_COLOR
              If this environment variable is defined, no color will be shown unless the --colors
              flag is passed. Comforming to NO_COLOR informal standard ⟨http://no-color.org/⟩

FILES

       ~/.config/undertime.yml $XDG_CONFIG_DIR/undertime.yml
              The configuration file loaded by default, if present.  The  configuration  file  is
              formatted  as  a  YAML  dictionary,  where  keys are the long option names (without
              dashes) and the values are their values.  Comments  start  with  the  #  character.
              Options  provided as arguments override the defaults set in the configuration file,
              particularly  timezones.  For  example,  this  means  timezones  specified  in  the
              configuration  file  are  ignored  ignored  when  also  specified as arguments. The
              --config parameter allows you to load another configuration file,  on  top  of  the
              default one, using the same logic, allowing you to have multiple "presets".

EXAMPLE

   Command line options
       undertime "New York" "Los Angeles" Paris
              Display possible meeting times for three major cities.

       undertime -s 8 -e 18 --date 2014-03-15
              Show a longer work day in march 2014.

   Configuration file
       Set the above timezones as default:
              timezones: [US/Central, US/Pacific, Europe/Paris]

       Set the work day to be between 10 and 1800 hours:
              start: 10
              end: 18

       Disable colors:
              colors: false