Use set time to show and edit the current day, date, month, year and time kept by the system clock. The second field is set to zero when the time on the clock is altered.
Note:
When the system clock is upgraded from an earlier release, the daylight savings time rule on the set time screen defaults to 0 (no rule). When you change the daylight savings time rule, the system clock automatically adjusts during the next transition of the rule.