#!/bin/bash
s='Local time: Wed 2022-11-16 13:02:00 CET
Universal time: Wed 2022-11-16 12:02:00 UTC
RTC time: Wed 2022-11-16 12:02:01
Time zone: Europe/Rome (CET, +0100)
System clock synchronized: yes
NTP service: inactive
RTC in local TZ: no'
sed -n 's/^ *Time zone: \([^ ]*\).*/\1/p' <<< "$s"
IyEvYmluL2Jhc2gKcz0nTG9jYWwgdGltZTogV2VkIDIwMjItMTEtMTYgMTM6MDI6MDAgQ0VUCiAgICAgICAgICAgVW5pdmVyc2FsIHRpbWU6IFdlZCAyMDIyLTExLTE2IDEyOjAyOjAwIFVUQwogICAgICAgICAgICAgICAgIFJUQyB0aW1lOiBXZWQgMjAyMi0xMS0xNiAxMjowMjowMQogICAgICAgICAgICAgICAgVGltZSB6b25lOiBFdXJvcGUvUm9tZSAoQ0VULCArMDEwMCkKU3lzdGVtIGNsb2NrIHN5bmNocm9uaXplZDogeWVzCiAgICAgICAgICAgICAgTlRQIHNlcnZpY2U6IGluYWN0aXZlCiAgICAgICAgICBSVEMgaW4gbG9jYWwgVFo6IG5vJwpzZWQgLW4gJ3MvXiAqVGltZSB6b25lOiBcKFteIF0qXCkuKi9cMS9wJyA8PDwgIiRzIg==