Setting date and gmt, Turn crown backward in position – Chase-Durer Apogee GMT Automatic User Manual
Page 5

3.
Setting DATE and GMT
7
GMT
12
24
14
2
1
6
4
10
22
8
2
0
1
8
6
1/2
1
/1
0
1
2
Turn crown backward in
position
2
to set the DATE
Pressing pushbutton
advances GMT
indicator
DATE changes each time
hour hand passes midnight
(24:00 hours)
GMT (Greenwich Median Time) is an international time standard originally established to facilitate oceanic navigation
and is based on the time in Greenwich, England from which the remaining 23 global time zones are derived.
GMT is 5 hours ahead of Eastern Standard Time (EST) and 4 hours ahead of
(EDT) during
Daylight Savings Time. So if the time is 0900 GMT, it is 4:00AM in New York City and 1:00AM in Los Angeles during
Eastern Standard Time (EST), but during Eastern Daylight Time (EDT) it is 5:00AM in New York City and 2:00AM in
Los Angeles. GMT is also referred to as Coordinated Universal Time (UTC) or Zulu Time (Z).
Eastern Daylight Time
DAY changes each
time hour hand
passes midnight
(24:00 hours)