Seiko Astron 5X53 Complete User Manual page 18

4
BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
List of GPS signal reception methods (characteristics of all three types)
Reception
Time adjustment
method
How to
manually
adjust the time
→ P. 21
Display
Automatic time
adjustment
→ P. 29
Time adjustment
Features
Precise current time of the set time
zone is displayed
Number of
acquired
One unit (to obtain only time
satellites
information)
necessary for
reception
Time taken for
3 seconds to 1 minute
reception
To set the watch to the precise time
What kind of
while it is used in the same time
situation
zone
Leap second data
Time zone adjustment
reception
How to adjust the
time zone
→ P. 19
Time zone identification and Leap second
time adjustment reception
Time zone where you are is identified, Ready for leap second
and the precise current time, reflecting data reception and
the addition conditions of DST (Daylight receiving Leap second
Saving Time), is displayed data → P. 31
Basically more than 4 units (to obtain time
information and time zone information)
30 seconds to
30 seconds to 2 minutes
18 minutes
This is performed
automatically after
GPS signal reception
(automatic time
When the watch is used in a different time
adjustment, manual
zone
time adjustment, or
time zone adjustment)
on or after June 1st
and December 1st.
GPS signal reception Q & A
Q : When the watch is moved to a different time zone, does the watch automatically display the
local time?
A : The watch does not automatically display the local time just by changing location.
If you are in a place where GPS signals can be easily received, adjust the time zone. The
watch automatically displays the local time.
When you are in a place where GPS signals cannot be received, manually set the time zone.
→ Manual time zone
The watch can be set to all time zones around the world.
Q : Is DST (Daylight Saving Time) automatically changed by receiving GPS signals?
A : The settings for DST (Daylight Saving Time) are done automatically by doing a time zone
adjustment.
The time automatically switches to adjust for the adoption and duration of DST (Daylight
Saving Time) for regions that follow DST (Daylight Saving Time).
"Normal time" always appears for regions that do not adopt DST (Daylight Saving Time).
-
Manually switch the DST (Daylight Saving Time) setting if you have moved to a place that
adopts different DST (Daylight Saving Time) details, even if the area is the same time zone.
→ Set DST (Daylight Saving
Even in the same time zone, some countries and regions do not adopt DST (Daylight Saving
Time).
→ Time zone display and list of time zones around the
Q : Is it necessary to carry out special operation for years in which a leap second is added?
A : No special operation is necessary.
Since the watch receives leap second data at the same time of receiving GPS signals
(automatic time adjustment, manual time adjustment, or time zone adjustment) on or after
June 1st and December 1st, a leap second is automatically added by periodically receiving
GPS signals. For details, refer to "Leap second (Automatic leap second reception
function)" P. 31.
17
ASTRON 5X53 GPS SOLAR
setting P. 23
Time) P. 24
world P. 12