NAME

       undertime - pick a meeting time

SYNOPSIS

       undertime    [--start    HOUR]   [--end   HOUR]   [--date   WHEN]   [--colors|--no-colors]
       [--default-zone--no-default-zone] [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.
       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

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

       --print-zones
              show valid timezones and exit

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

EXAMPLES

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

ENVIRONMENT

       TZ     Default timezone.

SEE ALSO

       tzselect(8) tzfile(5)
       Timezones list ⟨https://en.wikipedia.org/wiki/List_of_tz_database_time_zones⟩
       parsedatetime Python package ⟨https://pypi.python.org/pypi/parsedatetime/⟩

                                               2018                                  UNDERTIME(1)