VEMCO – VR100 Receiver Operating Manual – Page 38
4.3.2 System (2)
The System menu, a sub-menu of the Config menu, contains seven sub-menus (in order listed in VR100)
Time, Contrast, Backlight, Battery, Units, Version, and Reset to Factory Defaults. Each sub-menu is
associated with a number shown on the screen to the left of the selection.
Selecting a sub-menu option can be performed by using the up and down arrows on the front panel to
move the cursor until the number associated with the desired sub-menu is highlighted and then use the
“Select” command by pressing the right selection button. Another method to select a sub-menu is to press
the corresponding number on the keypad.
4.3.2.1 Time (2-1)
The date and time are displayed on the VR100’s screen in the format
YYYY MM DD HH:MM:SS
.
Both the date and time can be manually set to any moment on any day, but as soon as the GPS locks the
date and time will be corrected to the local time based on the Coordinated Universal Time (UTC) and the
offset entered in the VR100 by the user.
The GPS system uses Coordinated Universal Time (UTC), the international time standard (see Glossary
for more information). The VR100 receiver will convert the UTC time to the local time as long as the
correct offset has been entered in the receiver (see steps listed below). The offset is the number of hours
behind (a negative value) or ahead (a positive value) of the UTC your local time zone is. For example,
VEMCO is located in the Atlantic Standard Time zone, which is four hours behind UTC. The offset value
“– 4” must be entered in the VR100 for the receiver to display the time at VEMCO. Samples of UTC
conversions are listed in Table 4.3-1.
Table 4.3-1: Some conversions from UTC to Standard (winter) Local times.
LOCAL TIME ZONES
CONVERSION
Pacific Standard Time
UTC – 8 hours
Mountain Standard Time
UTC – 7 hours
Central Standard Time
UTC – 6 hours
Eastern Standard Time
UTC – 5 hours
Atlantic Standard Time
UTC – 4 hours
Greenwich Mean Time
UTC
Central European Time
UTC + 1 hours
Eastern European Time
UTC + 2 hours
Moscow Time
UTC + 3 hours
Indian Standard Time
UTC + 5:30 hours
Australian Western Standard Time (China)
UTC + 8 hours
Japan/Korea Standard Time
UTC + 9 hours
Australian Eastern Standard Time
UTC + 10 hours
