Tell Time in Your Time Zone

Since V5R3, IBM has been working on updating the time support within the i operating system. You can see evidence of this with the time zone descriptions, which were introduced in V5R3. By using time-zone descriptions, you can allow the system to automatically adjust the system time for Daylight Saving Time (DST). But beyond the addition of time-zone descriptions and time adjustment, you haven’t seen other time-related changes in subsequent releases. However, much work has been done internally within the operating system to move to a Coordinated Universal Time (UTC)-based time system; in a UTC-based system, the date and time values are stored in UTC and converted to and from a job’s own time zone when displayed or changed by the user. This would ultimately allow different users in different time zones to work in their own local time.