Chase-durer APOGEE GMT AUTOMATIC Operation Manual - Date
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)