jq dates and unix timestamps

Question

So I have a data with bunch of unix timestamp values (in milliseconds). Something like this:

{
    \"id\": \"f6922fd5-4f97-4113-820e-b45eba0ae236\",
    \"publis         


        

Answer 1

jq 1.5 has standard time-and-date functions such as strftime, as documented in the online manual. However support for TZ is extremely limited and/or unreliable, as illustrated here:

$ echo $TZ

$ jq -n '123 | strftime("%B %d %Y %I:%M%p %Z")'
"January 01 1970 12:02AM EST"

TZ='Asia/Kolkata' jq -n '123 | strftime("%B %d %Y %I:%M%p %Z")'
"January 01 1970 12:02AM IST"

strflocaltime

If your jq has strflocaltime:

TZ=Asia/Kolkata jq -n '123|strflocaltime("%Y-%m-%dT%H:%M:%S %Z")'
"1970-01-01T05:32:03 IST"