How to use -gmt flag in timestamp in expect script

Question

I have 2 date variables in a expect script. One of them returns the local date and i want the second date returns a date with a different GMT time zone in a expect script. My code:

set date_hour_date1 [timestamp -format %Y/%m/%d]
set date_hour_date2 [timestamp -format %Y/%m/%d -gmt "America/New_York"]

When i run my script returns this error:

args: [-seconds #] [-format format] [-gmt]
    while executing
"timestamp -format %C%y%m%d -gmt "America/New_York""
    invoked from within
"set tmp [timestamp -format %C%y%m%d -gmt "America/New_York"]"

My conclusion is that "America/New_York" is not a correct parameter. I have tried to look some examples around the internet but i can't find anything.

Is there any example to use gmt flag in a expect script?

Answer 1

You can use the clock function to achieve this:

set now [clock format [clock seconds] -format "%d/%m/%y %H:%M:%S" -timezone "America/New_York"] 
puts "$now"