Looking on the internet deeply has found these results:

This is my first time is the most popular phrase on the web.

It is my first time 1106,000 results on the web	This is my first time 165,800,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
May 13, 2015 ... My advice is never to use the topic phrase 'it is my first time to ...'. It is not natural English and I doubt if it is grammatically correct. As others have ... Oct 19, 2014 ... It is my first time to VERB or VERB You asked: It is my first time logging into EasyWeb. What do I need to do? We matched that to: It is my first time logging into EasyWeb. What do I need to do? ing. up vote 3 down vote favorite. From a sentence written by a student: It was my first time to visit China. Apr 6, 2015 ... i messed it up it is my first time doing this! Cassandra Morrison. Subscribe SubscribedUnsubscribe 3. Subscription preferences. Loading.	God, this is my first time out of Kansas! To be honest this is my first time rowing This is my first time to live with others. This is my first time, actually. Thank you very much, Chris. Everybody who came up here said they were scared. I don't know if I'm scared, but this is my first time of addressing an audience like this. This is my first time meeting him, too. This is my first time in a Korean home out in the country. Well, to tell you the truth, this is my first time, too.

It is my first time

1106,000 results on the web

This is my first time

165,800,000 results on the web

More popular!

May 13, 2015 ... My advice is never to use the topic phrase 'it is my first time to ...'. It is not natural English and I doubt if it is grammatically correct. As others have ...
Oct 19, 2014 ... It is my first time to VERB or VERB
You asked: It is my first time logging into EasyWeb. What do I need to do? We matched that to: It is my first time logging into EasyWeb. What do I need to do?
ing. up vote 3 down vote favorite. From a sentence written by a student: It was my first time to visit China.
Apr 6, 2015 ... i messed it up it is my first time doing this! Cassandra Morrison. Subscribe SubscribedUnsubscribe 3. Subscription preferences. Loading.

God, this is my first time out of Kansas!
To be honest this is my first time rowing
This is my first time to live with others.
This is my first time, actually.
Thank you very much, Chris. Everybody who came up here said they were scared. I don't know if I'm scared, but this is my first time of addressing an audience like this.
This is my first time meeting him, too.
This is my first time in a Korean home out in the country.
Well, to tell you the truth, this is my first time, too.