Daylight saving time

Daylight saving time, is a periodic change in local time, usually to "spring forward" +1 hour in March and "fall back" -1 hour in November.

Daylight saving time is also abbreviated as DST, but should not be confused with Dedicated Service Tools.

Because of a change to the start and ending dates for DST in 2007, various PTFs and fixes will be needed on AS/400 servers running OS/400 V5R3 or later. Operating system versions prior to that do not have the QTIMZON system value and do not require fixes.

External links

• wikipedia:Daylight savings time
• wikipedia:Energy Policy Act of 2005#Change to daylight saving time
• Daylight Savings Time (DST) Information on IBM System i servers (tips0655) at IBM Redbooks Technotes
• 2007 Daylight Saving Time Technical Summary for i5/OS from IBM Software Technical Document Number 443720165.

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