NAME

     tzdiff — displays timezone differences with localtime.

SYNOPSIS

     tzdiff [-0] [-n count] [-f format] [-t time] timzone [timezone ...] [count] [0]

DESCRIPTION

     The tzdiff utility displays the localtime of the designated timezone and yours.

     The tzdiff utility needs at least one of timezone name, such as “Asia/Tokyo”.  If the
     argument is “Asia” then tzdiff displays the timezones of Asia. You can easy to choose it
     from the result.

     The tzdiff supports the complition with name of timezone for useful.  For example, “Tok”
     means “Asia/Tokyo”.

     The options are as follows:

     -0      Round down to hour. 0(zero) may be specified as the last argument.

     -n count
             Number of hours. Default is 10. It may be specified as the last argument.

     -h      Show usage.

     -f fmt  Output format of time. It uses output format of date(1)

     -t arg  Specify the start time.  It supports one of “YYYY-mm-ddThh:mm” or “YYYYmmddThhmm”.

     -H      Scripting mode with timezone name. In scripting mode, field separator is TAB instead
             of space.

     -HH     Scripting mode without timezone name.

     -N      Display without local timezone.

EXAMPLES

     These exsamples are in JST.

     The command:

           tzdiff

     will display the result of “ls -F /usr/share/zoneinfo”:

           Africa/       Australia/    Etc/          MST           WET
           America/      CET           Europe/       MST7MDT       posixrules
           --- snip --- snip --- snip ---
           Asia/         EST           Indian/       SystemV/
           Atlantic/     EST5EDT       MET           UTC

     The command:

           tzdiff Eu

     will display the result of “ls -F /usr/share/zoneinfo/Europe”:

           Europe/Amsterdam        Europe/Kiev             Europe/Sarajevo
           Europe/Andorra          Europe/Kirov            Europe/Saratov
           --- snip --- snip --- snip ---
           Europe/Jersey           Europe/Samara
           Europe/Kaliningrad      Europe/San_Marino

     The command:

           tzdiff Europe/Amsterdam

     will display the time of CET and localtime.:

           Europe/Amsterdam
           2018-12-19 14:52 CET    2018-12-19 22:52 JST
           2018-12-19 15:52 CET    2018-12-19 23:52 JST
           --- snip --- snip --- snip ---
           2018-12-19 22:52 CET    2018-12-20 06:52 JST
           2018-12-19 23:52 CET    2018-12-20 07:52 JST

     The command:

           tzdiff Lond New_ 0 3

     will display:

           Europe/London           America/New_York
           2018-12-20 01:00 GMT    2018-12-19 20:00 EST    2018-12-20 10:00 JST
           2018-12-20 02:00 GMT    2018-12-19 21:00 EST    2018-12-20 11:00 JST
           2018-12-20 03:00 GMT    2018-12-19 22:00 EST    2018-12-20 12:00 JST

SEE ALSO

     date(1), strftime(3), strptime(3)

     tzdiff on Github: https://github.com/belgianbeer/tzdiff

AUTHOR

     Written by Masato Minda