Where $returned_timestring is the timestamp in the remote server's time-zone, but with no TZ information included, e.g. Returned_timestamp=$(date -d '$returned_timestring $SERVER_TZ' +%s) # Convert to unixtime (could convert to UTC, or local time-zone, or whatever) SERVER_TZ=$(TZ='$SERVER_TZ_NAME' date -d '$returned_timestring' +%Z' # - for US/Pacific, this will return either PST or PDT, depending on the # Work out which time-zone (short name) is used at the specified date/time So I run something like this: SERVER_TZ_NAME='US/Pacific'

To do that, my bash script needs to know if San Francisco is currently in Winter time (PST) or Summer time (PDT). I need to know what that date/time is in UTC (or in unixtime), for comparison with other date/time fields. I had a problem that many others probably share - my server (which works in UTC) queries a REST API in a remote server that is set to San Francisco time, and it returns date/time fields with no timezone specified, e.g. Time zone difference or offset between the local current time in USA Colorado Denver and USA California Sunnyvale. There=`TZ=$ date -d '$mdate' +%z` # same here Here=`TZ=$myplace date -j -f '$dfmt' +%z '$mdate'` Hfmt='+%B %e, %Y' # date format for the headerįormat1='%-10s ' # Increase if your cities are large Place='America/Chicago' # Houston as wellĭfmt='%m-%d' # date format for meeting date Myday='8 20' # start and end time, with one space

# set the following variable to the start and end of your working day # ig20180122 - displays meeting options in other time zones USA Time Clock & Map - check current local time in the USA - timezones, time difference, offset to GMT/UTC, summer/winter time conversion dates, actual official time in the US, United Satets free clocks. I know it is an old thread, but I needed a code for the same use case and, based on the ideas here, developed this little bash script: #!/bin/bash

Clock the time zone converter