What is the meaning of T Z format in whois output?

I've just notice this format when doing whois just now. What is the meaning of T and Z format in whois output? E.g. user@linux:~$ whois example.com Domain Name: EXAMPLE.COM Registry Domain ID: 2336799_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.iana.org Registrar URL: http://res-dom.iana.org Updated Date: 2019-08-14T07:04:41Z Creation Date: 1995-08-14T04:00:00Z Registry Expiry Date: 2020-08-13T04:00:00Z I assume T07:04:41Z was updated on 7:04:41. So this is time right? Hour, minute, second? What about T and Z? Is this UTC time? GMT+0?