When you create a scheduled post, the selected date and time is based on the time zone in your profile. For example, if the content is scheduled to be posted on 20th November 2022 at 14:00pm, and the time zone in your profile is (GMT + 00:00) London, that time zone will apply. Users in London will see the content at 14:00pm GMT, however, users in New York will see it at 9:00am EST, because New York’s time zone is 5 hours behind London’s.
If you want to post content at a specific time in a time zone other than your own, you must take time differences into consideration. This ensures that users in different time zones see content at the appropriate time and not earlier or later than intended. You can easily calculate time differences using a time zone converter, such as https://www.worldtimebuddy.com/.