Model 5600MSC Master Clock/SPG Manual
Page 3-62
Revision 1.6
OPERATION
Note that local time between 1:00:00 and 1:59:59 actually is repeated twice this day, first during DST
time, then clocks are turned back one hour to normal time, and the hour is repeated during standard
time and therefore this day has 25 hours (instead of 24 hours). To avoid confusion when referring to
time within this hour, it is important to tell whether it happened before of after the change back to
normal time. For further information about daylight saving time in your area consult the web page
http://www.timeanddate.com/time/aboutdst.html.
Because of the variation of daylight saving time rules throughout the world, the 5600MSC has several
registers to allow the user to set the DST rules for their region. There is a set of DST registers for the
LTC and each of the video outputs. For the sake of simplicity in the manual only the registers for the
LTC DST will be described.
3.7.6.1. Setting The DST Date Entry Mode
GENERAL
DST RULES
DST Date Mode
day/week/month
day of month
This menu item allows the user to set the method of entering the DST
information in the DST registers.
Select
day/week/month
to enter the DST information in the following format:
Day 1 of week 1 of month 4 (e.g. Sunday of first week of April)
Select
day of month
to enter the DST information in the following format:
Day 1 of month 4 (e.g. First day of April)
3.7.6.2. Setting the Beginning and End of Daylight Saving Time
The four
DST start
registers set the DST beginning time and the four
DST end
registers set the DST
end time. For the sake of simplicity only the
DST start
registers will be described, although they both
operate in the same way.
GENERAL
DST RULES
DST Start Hour
DST starts 0200
This menu item allows the user to set hour of the day when DST begins.
Use the
SHAFT ENCODER
to change the start hour for DST.
GENERAL
DST RULES
DST Start Day
DST starts sun
When the
DST date mode
menu is set to
day/week/month
this menu item
allows the user to set day of the week when DST begins. Use the
SHAFT
ENCODER
to change the start day for DST.
When the
DST date mode
menu is set to
day of month
this menu item
allows the user to set day of the month when DST begins.
USO
RESTRITO
