Vixen SPHINX SXD Mount - Manual (Page 16)

Page 16
Setting Local Time
Enter the date and local time of your observing site by using the on screen soft keys shown
at the lower right of the screen. This task is required only the first time you use the STAR
BOOK. However, you will need to reset the date and time if you travel from your regular
observing site to a different time zone or if you reset your clocks for Daylight Saving time.
A deviation may arise between the initial clock of the STAR BOOK and your time, but a few
minute’s difference does not affect the slewing performance of the unit.
Choose Local Setting Time with the keys and press Select.
To change the date and time, move the cursor with the
keys to the item where
corrections are needed. Then change the number with the keys.
To finish the setting, move the cursor with the
keys to OK and press Select.
About Time Zone
The time zones are based on longitude bands 15 degrees wide, starting at Greenwich,
England. Set the time difference in hours between your local time and Greenwich Mean
Time (GMT). The sign is “plus” if local time is ahead of GMT (east of Greenwich) and “minus”
if local time is behind GMT (west of Greenwich). For example, the time zone for Los
Angeles (on Pacific Standard Time) is -8 hours.
Please note that the time zone setting is not converted to Daylight Saving time
automatically. When you reset your clocks for Daylight time, add one hour to the value in
the Time Zone setting, as in Los Angeles, change the setting from -8 to -7.