Setting up the GMT time zone

It is important to set the default time zone for date/time management.

Usually, when we refer to date/time, do not pay attention to which time zone value is being referred to.

For example, if we live in Rome and want to spend our next holiday in New York, when we receive the check-in date/time from the hotel, we must consider which time zone time is being referred to (whether local or remote).

When we display a date/time value that could be misunderstood, it is always recommended to add a time zone reference to it. The time zone is expressed through positive or negative hours compared to a reference that is usually GMT (Greenwich Mean Time).

For example, if it is 9 p.m. in Rome (GMT +1), in GMT time it will be 8 p.m. (GMT +0), 3 p.m. in New York (GMT -5), and finally 12 p.m. in Los Angeles (GMT -8).

Therefore, it is necessary to establish a common shared time value. For this purpose, it is advisable to use GMT as the time reference for all values and operations on...