The time zones for the two have to be extremely different. And if you are sending emails on Gmail, you need to make sure that the time zone selected by you is set to the correct time zone. For instance, if you are sending an email to them from a date which that certain time zone has not reached, then the client might have issues with this record, or, if you had a deadline to meet and the date for the deadline is one day after in your region, and today in the client’s region, then there is a higher possibility of issues between the two parties. Therefore, the correct time zone, in Gmail, matters a lot. So if you want to change your time zone to another region, the following are steps that you can follow. If you have not set up a time zone yet, you might just do it now as it will help you thoroughly in keeping a time check for your client and your business.