Are St. Louis and Cozumel Mexico in same time zone?

Answer 1

Yes. However, you should be aware that Cozumel observes a Daylight Savings Time from Mar 13 until Nov 6. Right now, both cities have the exact same time.

Answer 2

No, St. Louis, USA, is in the Central Time Zone (CT), while Cozumel, Mexico, is in the Eastern Standard Time Zone (ET). There is a one-hour time difference between the two locations.