[SOLVED] Finding the Day of the Week in different timezones

hattori.hanzo · 11-10-2010, 06:44 PM

I am using the following to find the Day of the Week on my server which is in UTC.

Code:

DAY=$(date --date="yesterday" +'%A')

But say if I want to find the Day of the Week in another timezone, how would one go about it. I had a look at date --help but could not find any timezone related switches so am not sure if this is possible using this method.

Update:

This appears to work but is this the only way?

Code:

DAY=$(TZ=EST date --date="yesterday" +'%A')

Thanks & Regards,

wje_lq · 11-10-2010, 07:17 PM

I ran this bash script:

Code:

#!/bin/bash

where=-12

while [[ $where -lt 13 ]]
do
  if [[ $where -ge 0 ]]
  then
    where=+$where
  fi
  export TZ=UTC$where
  DATE=$(date)
  DAY=$(date --date=yesterday +'%A')
  echo $TZ $DATE $DAY
  where=$(($where+1))
done

and got this output:

Code:

UTC-12 Thu Nov 11 13:16:10 UTC 2010 Wednesday
UTC-11 Thu Nov 11 12:16:10 UTC 2010 Wednesday
UTC-10 Thu Nov 11 11:16:10 UTC 2010 Wednesday
UTC-9 Thu Nov 11 10:16:10 UTC 2010 Wednesday
UTC-8 Thu Nov 11 09:16:10 UTC 2010 Wednesday
UTC-7 Thu Nov 11 08:16:10 UTC 2010 Wednesday
UTC-6 Thu Nov 11 07:16:10 UTC 2010 Wednesday
UTC-5 Thu Nov 11 06:16:10 UTC 2010 Wednesday
UTC-4 Thu Nov 11 05:16:10 UTC 2010 Wednesday
UTC-3 Thu Nov 11 04:16:10 UTC 2010 Wednesday
UTC-2 Thu Nov 11 03:16:10 UTC 2010 Wednesday
UTC-1 Thu Nov 11 02:16:10 UTC 2010 Wednesday
UTC+0 Thu Nov 11 01:16:10 UTC 2010 Wednesday
UTC+1 Thu Nov 11 00:16:10 UTC 2010 Wednesday
UTC+2 Wed Nov 10 23:16:10 UTC 2010 Tuesday
UTC+3 Wed Nov 10 22:16:10 UTC 2010 Tuesday
UTC+4 Wed Nov 10 21:16:10 UTC 2010 Tuesday
UTC+5 Wed Nov 10 20:16:10 UTC 2010 Tuesday
UTC+6 Wed Nov 10 19:16:10 UTC 2010 Tuesday
UTC+7 Wed Nov 10 18:16:10 UTC 2010 Tuesday
UTC+8 Wed Nov 10 17:16:10 UTC 2010 Tuesday
UTC+9 Wed Nov 10 16:16:10 UTC 2010 Tuesday
UTC+10 Wed Nov 10 15:16:10 UTC 2010 Tuesday
UTC+11 Wed Nov 10 14:16:10 UTC 2010 Tuesday
UTC+12 Wed Nov 10 13:16:10 UTC 2010 Tuesday

Hope this helps.

hattori.hanzo · 11-10-2010, 07:23 PM

Thanks wje_lq. I posted an update at the same time you posted a response. :-)

The bash script will be great to find out the Day within a 24 hour period. Appreciate it.

Thanks & regards,