NorthStar 957 Operator's Manual page 164

Chapter 11 - Setting up your 957
Page 156
In the center of the screen, the current time expressed as
"GMT" (Greenwich Mean Time) is displayed. Note that the day
of the week in Greenwich, England may be different from the
day in your local time zone (right screen, above).
To change the time zone used for the time display (for both
this and other time displays), press the TIME ZONE menu key,
and use the CURSOR PAD to select the desired zone and
standard or daylight time. Press the ENTER key to use the new
time zone.
957 Operator's Manual, Rev. B