Setting Summer Time (Smt) - Citizen AT9030-55L Instruction Manual

Setting Summer Time (SMT)

◆ Setting Summer Time (SMT)
Summer Time is a system adopted in some countries/areas to gain an extra hour
of daylight during summer by advancing clocks by one hour. In an area where the
summer time is in effect, the time signal contains a summer time check signal.
This watch automatically updates the SMT / STD time setting when receiving the
summer time information in the radio signal.
• The summer time setting can be manually set to OFF if you live in an area that
does not observe summer time. See pages 38 to 41
• The summer time can be manually set to ON if you live outside the radio
signal receiving area. See pages 38 to 41
• The summer time rules may change depending on the country or area.
• The summer time period varies based on country or area.
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