Handling time zone in web application

Question

In our web application we need to show and enter date time information for different countries in different time zone. Right now, we are maintaining separate web server and

Answer 1

Use TIMESTAMP WITH LOCAL TIME ZONE
if you want the database to automatically convert a time between the database and session time zones.

Stores a date and time with up to 9 decimal places of precision. This datatype is sensitive to time zone differences. Values of this type are automatically converted between the database time zone and the local (session) time zone. When values are stored in the database, they are converted to the database time zone, but the local (session) time zone is not stored. When a value is retrieved from the database, that value is converted from the database time zone to the local (session) time zone.