By turning the rotating bezel, another time can be read at the 24-hour hand.
In the case of 24-hour hand being set to 24 hours of the hour and minute hands
<The direction and the amount to turn the rotating bezel can be determined by the following method>
[The direction and the amount to turn the rotating bezel] E
is calculated as,
[Time difference from GMT of 24-hour hand, C] - [Time difference from GMT of the region you wish to know, D]
E = C - D
In this example, the 24-hour hand indicates Japan time, and therefore, C = +9.
-
As an example, if the time of a region you wish to know belongs to the time zone of GMT, the time difference from GMT is “0” and hence,
D = 0
E = C - D = (+9) - (0) = +9
GMT can be read as “1:00” on the rotating bezel scale. -
As another example, if you wish to know the time of the region “Los Angeles”, the time difference from GMT is “-8 hours”, so D = -8
E = C - D = (+9) - (-8) = +17
Turn the rotating bezel 17 hours clockwise. (Result: Same as the counterclockwise rotation of 7 hours)
Los Angeles time can be read as “17:00”.
If E is a positive number “+”, turn the rotating bezel clockwise. If it is a negative number “-”, turn it counterclockwise.
When this intended usage is no longer needed, please return the original position “24” mark of rotating bezel to 12 o’clock position.
In the case of 24-hour hand being set to different time zone
Three different time zones can be read by turning the rotating bezel.
【Example】 When displaying 10:08 AM Japan time with the hour and minute hands, and displaying Paris time with the 24-hour hand,
Time difference from GMT of “Paris” where the 24-hour hand is set, C = +1
Time difference from GMT of “Bangkok” that you wish know from now on, D = +7
E=C-D= (+1) - (+7) = -6
Turn the rotating bezel counterclockwise and set.
List of time zone differences in major regions of the world
City display |
Name of the representing cities |
Time difference from Japan |
Time difference from GMT |
Other cities |
---|---|---|---|---|
WLG |
Wellington |
+3 hours |
+12 hours |
Fiji islands, Auckland |
NOU |
Noumea |
+2 hours |
+11 hours |
Solomon Islands |
SYD |
Sydney |
+1 hour |
+10 hours |
Guam Island, Khabarovsk |
TYO |
Tokyo |
±0 hour |
+9 hours |
Seoul, Pyongyang |
HKG |
Hong Kong |
-1 hour |
+8 hours |
Manila, Beijing, Singapore |
BKK |
Bangkok |
-2 hours |
+7 hours |
Jakarta |
DAC |
Dhaka |
-3 hours |
+6 hours |
|
KHI |
Karachi |
-4 hours |
+5 hours |
Tashkent |
DXB |
Dubai |
-5 hours |
+4 hours |
|
JED |
Jeddah |
-6 hours |
+3 hours |
Mecca, Nairobi, Istanbul |
CAI |
Cairo |
-7 hours |
+2 hours |
Athens |
PAR |
Paris |
-8 hours |
+1 hour |
Rome, Amsterdam |
GMT |
London |
-9 hours |
±0 hour |
|
PDL |
Azores Islands |
-10 hours |
-1 hour |
|
RIO |
Rio de Janeiro |
-12 hours |
-3 hours |
|
SDQ |
Santo Domingo |
-13 hours |
-4 hours |
|
NYC |
New York |
-14 hours |
-5 hours |
Washington, Montreal |
CHI |
Chicago |
-15 hours |
-6 hours |
Mexico City |
DEN |
Denver |
-16 hours |
-7 hours |
Edmonton |
LAX |
Los Angeles |
-17 hours |
-8 hours |
San Francisco |
ANC |
Anchorage |
-18 hours |
-9 hours |
|
HNL |
Honolulu |
-19 hours |
-10 hours |
|
MDY |
Midway Island |
-20 hours |
-11 hours |
|
In the regions marked with , daylight saving time is introduced. (As of Oct, 2018)
Daylight saving time, being defined as time difference +1 hour, is a system that advances the time by 1 hour during summer time to prolong the daylight hours.
Time difference and daylight saving time are subject to change depending on the conditions of the respective countries or regions.