Time zone¶

Items

Overview
- Meaning of time zone support
- Time zone support of intra-mart Accel Platform
Definition of time zone
- Definition of default time zone
Save the date and time data after changing it to uniform time-zone
- System Requirement
- Change the date and time data to system default time zone
Daylight saving time
- Meaning of Daylight saving time
- Daylight saving time support of intra-mart Accel Platform

Overview ¶

Meaning of time zone support ¶

Time zone support is a mechanism which suitably changes the time zone so that the date and time data used around the globe can be compared and changed.

The system automatically acknowledges the daylight saving time and changes the date and time data as well.

Time zone should be set for each user, since the user refers the date and time data suitable to his/her time zone.

The information cannot be used effectively, if the time zone of the date and time data is different for each user.

Therefore, save the changed date and time data according to the uniform time zone, on system side.

Time zone support of intra-mart Accel Platform ¶

Following 5 are the configuration elements to support time zone in intra-mart Accel Platform .

Definition of time zone

It defines the time zone to be used in intra-mart Accel Platform .

Save the date and time data after changing it to uniform time zone.

Save the date and time data in DB after changing it to uniform time zone.

Decide time zone

User can register a time zone which is to be used in intra-mart Accel Platform .

Default time zone is applicable if no time zone is registered.

Refer to Defined Access Context for the decision sequence of time zone.

Change the date and time data to user time zone

To display date and time data on screen, it should be changed to user time zone.

Refer to To use the user time zone, date and time format for the techniques to change to user time zone.

Daylight saving time support

Definition of time zone ¶

Definition of default time zone ¶

Refer the following for the time-zone which is defined by intra-mart Accel Platform in the default status.

Definition of default time zone

Time zone master file
Time-zone defined in intra-mart Accel Platform is mentioned in XML called as “Time zone master file”.

System default time zone is the time zone of Java VM .
Configuration file
<CONTEXT_PATH>/WEB-INF/conf/time-zone-config/im-time-zone-config.xml

Save the date and time data after changing it to uniform time-zone ¶

System Requirement ¶

Following are the server side constraints in the operational environment of intra-mart Accel Platform to process the date and time data as the data of same time zone.

Use TIMESTAMP format for the DB data format which stores the date and time data

In SQL server, datetime or datetime 2 is used.

Save the date and time data by changing it to system default time zone

System default time zone is similar to time zone of Java VM .

**In distributed environment, standardize a time zone of entire Java VM **

Do not change time zone of Java VM after the operation starts

Change the date and time data to system default time zone ¶

Refer to To use the user time zone, date and time format.

Daylight saving time ¶

Meaning of Daylight saving time ¶

During summer, the system adopts a time zone wherein definite time period is added to the current time to make effective use of day time. Daylight saving time represents that added time.

Implementation time or adjusted time is not constant as it depends on the geographical location of that zone. Moreover, it is uncertain whether implementation should be carried out or not.

Daylight saving time support of intra-mart Accel Platform ¶

In intra-mart Accel Platform daylight saving time is automatically applied to the time-zone by using daylight saving time information provided in Java.