Looking on the internet deeply has found these results:

in the same time zone is the most popular phrase on the web.

on the same time zone 11,240,000 results on the web	in the same time zone 11,800,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
If you weren't on the witness list, I wouldn't let you in the same time zone... We're in the same time zone. I thought husbands and wives were supposed to live in the same time zone. None of them are even in the same time zone. Same state, same time zone. And then in three weeks or three months or whenever... we'll all be back in the same time zone again. Even when they're not in the same time zone, they can ruin your day. In order to keep all of India in the same time zone, they have to split the difference between the east and west halves of the country.	I thought husbands and wives were supposed to live in the same time zone. None of them are even in the same time zone. And then in three weeks or three months or whenever... we'll all be back in the same time zone again. We're in the same time zone. If you weren't on the witness list, I wouldn't let you in the same time zone... In order to keep all of India in the same time zone, they have to split the difference between the east and west halves of the country. Even when they're not in the same time zone, they can ruin your day.

on the same time zone

11,240,000 results on the web

in the same time zone

11,800,000 results on the web

More popular!

If you weren't on the witness list, I wouldn't let you in the same time zone...
We're in the same time zone.
I thought husbands and wives were supposed to live in the same time zone.
None of them are even in the same time zone.
Same state, same time zone.
And then in three weeks or three months or whenever... we'll all be back in the same time zone again.
Even when they're not in the same time zone, they can ruin your day.
In order to keep all of India in the same time zone, they have to split the difference between the east and west halves of the country.

I thought husbands and wives were supposed to live in the same time zone.
None of them are even in the same time zone.
And then in three weeks or three months or whenever... we'll all be back in the same time zone again.
We're in the same time zone.
If you weren't on the witness list, I wouldn't let you in the same time zone...
In order to keep all of India in the same time zone, they have to split the difference between the east and west halves of the country.
Even when they're not in the same time zone, they can ruin your day.