Reception
method
Time adjustment Time zone adjustment
Leap second data
reception
Display
How to manually
adjust the time
P. 21
Automatic time
adjustment
P. 29
How to
adjust the
time zone
P. 1 9
Features
Time adjustment
Precise current time of the set
time zone is displayed
Time zone identification
and time adjustment
Time zone where you are is
identified, and the precise
current time, reflecting the
addition conditions of DST
(Daylight Saving Time), is
displayed
Leap second reception
Ready for leap second data
reception and receiving
Leap second data
P. 31
Number of
acquired
satellites
necessary
for reception
One unit (to obtain only time
information)
Basically more than 4 units
(to obtain time information
and time zone information)
Time taken
for reception
3 seconds to 1 minute 30 seconds to 2 minutes 30 seconds to 18 minutes
What kind of
situation
To set the watch to the precise
time while it is used in the
same time zone
When the watch is used in a
different time zone
This is automatically
displayed after receiving
GPS signals (automatic
time adjustment, manual
time adjustment, or time
zone adjustment) on or after
June 1st and December 1st.
17
ASTRON 5X53 GPS SOLAR
BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
4
List of GPS signal reception methods (characteristics of all three types) 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 being moved.
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 setting P. 2 3
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 Time) P. 2 4
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 world P. 1 2
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.”
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