In the time zone adjustment mode or time difference setting mode, set the seconds hand to point at the time zone index or time difference index of the target area referring to the table below.
To set the Daylight Saving Time (DST), set the seconds hand to point at the time zone index or time difference index next to the target area in the clockwise direction (+1 hour).
The time zones and time differences with a △ mark in the receivable radio signals columns should be selected when the Daylight Saving Time (DST) is being observed in Tokyo, New York or Paris/Berlin.
Each indication may differ depending on the model (design) of the watch.
(As of August 2020)
|
Time zone display |
Time difference display |
Seconds hand positions |
Names of representative cities (Time zone) |
Time difference from UTC |
Receivable radio signals |
|---|---|---|---|---|---|
|
LON |
UTC |
0-second position |
London |
±0 hours |
DCF77 |
|
PAR/BER |
1 |
3-second position |
Paris/Berlin |
+1 hours |
DCF77 |
|
CAI |
2 |
6-second position |
Cairo |
+2 hours |
DCF77 △ |
|
JED |
3 |
8-second position |
Jeddah |
+3 hours |
- |
|
DXB |
4 |
11-second position |
Dubai |
+4 hours |
- |
|
KHI |
5 |
13-second position |
Karachi |
+5 hours |
- |
|
DAC |
6 |
15-second position |
Dhaka |
+6 hours |
- |
|
BKK |
7 |
18-second position |
Bangkok |
+7 hours |
- |
|
BJS/HKG BJS |
8 |
21-second position |
Beijing/Hongkong Beijing |
+8 hours |
BPC |
|
TYO |
9 |
23-second position |
Tokyo |
+9 hours |
JJY |
|
SYD |
10 |
25-second position |
Sydney |
+10 hours |
JJY △ |
|
NOU |
11 |
28-second position |
Nouméa |
+11 hours |
- |
|
WLG |
12 |
30-second position |
Wellington |
+12 hours |
- |
|
TBU |
13 |
32-second position |
Nuku’alofa |
+13 hours |
- |
|
MDY |
-11 |
34-second position |
Midway Islands |
-11 hours |
- |
|
HNL |
-10 |
36-second position |
Honolulu |
-10 hours |
- |
|
ANC |
-9 |
38-second position |
Anchorage |
-9 hours |
- |
|
LAX |
-8 |
41-second position |
Los Angels |
-8 hours |
WWVB |
|
DEN |
-7 |
43-second position |
Denver |
-7 hours |
WWVB |
|
CHI |
-6 |
45-second position |
Chicago |
-6 hours |
WWVB |
|
NYC |
-5 |
48-second position |
New York |
-5 hours |
WWVB |
|
SDQ |
-4 |
50-second position |
Santo Domingo |
-4 hours |
WWVB △ |
|
RIO |
-3 |
53-second position |
Rio de Janeiro |
-3 hours |
- |
|
FEN |
-2 |
55-second position |
Fernando de Noronha |
-2 hours |
- |
|
PDL |
-1 |
57-second position |
Azores |
-1 hour |
- |
What is a time zone?
Based on Coordinated Universal Time (UTC), the standard time commonly used is adopted by countries and regions around the world.
The standard time is determined by each country or region, and the region where the same standard time is adopted is referred to as the time zone.
Further, Daylight Saving Time (DST) is individually adopted in countries and regions.
[What is UTC (Coordinated Universal Time)?]
UTC is the universal standard time coordinated through international agreement. It is used as the official time around the world. UTC is a time coordinated by adding leap seconds to the “International Atomic Time (TAI)” determined from atomic clocks in the world, in order to correct the deviation from the astronomically defined universal time (UT).
[What is summer time (DST)?]
Summer time is Daylight Saving Time (DST).
Advance the watch one hour to prolong daytime during longer daylight hours in summer.
The adoption and duration of Daylight Saving Time (DST) vary depending on the country.
Time differences between regions and daylight saving time may change due to circumstances of a country or region.
In some regions, time zones that differ from UTC by half- or quarter-hour time differences are established. (For example, some parts of India)
Q&A for the world time function
Q:
Will the watch be automatically set to the local time when it is moved to a place outside Japan in a different time zone?
A:
The watch will not be automatically set to the local time if it is just moved to a place outside Japan in a different time zone.
When traveling outside of your home time zone, select the time zone or set the time difference of your current location.
By selecting the time zone or by setting the time difference of your current location, the watch automatically displays the local time of your current location. (The time difference can be set in one-hour increments.)
After the time zone is selected or the time difference is set, the watch can display the precise time by receiving radio signals, provided that the watch is within the radio signal reception range. (The radio signal transmitting station can be changed by selecting a time zone.)
Q:
When returning to Japan from overseas, is the time automatically set to Japan time?
A:
Just moving does not adjust your watch to Japanese local time.
When wearing a watch in Japan, set to Japan time by use of the world time function.
Q:
During operation of time zone selection or time difference setting, the hands of the watch do not move. Does this cause the watch to display the wrong time?
A:
The internal circuit stores the time, therefore, no time lag occurs.
Q:
When the time zone or time difference is set to a region outside the radio signal reception range, the watch cannot receive radio signals. How does this affect the accuracy of the watch?
A:
The watch has an accuracy of a normal quartz watch in that case. (Monthly rate: ±15 seconds)
Q:
How can I set the watch to display the local time in a region with 15-minute or 30-minute offsets from UTC?
A:
The time can be adjusted on a 1 hour basis by use of the time difference adjustment function. When adjusting to a local time with a time difference of 15 minutes or 30 minutes, refer to How to manually set the time