Using the Time Manager 
When you click the Time Icon,
the Time Dialog (shown below)
displays the current time and date. Since the information that it uses is
generated by your internal computer clock, it can only be as accurate as your
clock setting.
If you
have the box checked next to Current
Time Zone, the dialog will show your local time each time it is
opened. When using local time, be sure
you place a check next to Daylight
savings (if Daylight Savings Time is
in effect), or your local time will be off by 1 hour!
As you can
see, time is given in 24 hour (or
Military Time), rather than the AM/PM system. On a 24-hour time display, the hours between
Uncheck Current time zone (as shown below), and the dialog will revert to Universal Time
(UT). UT is the time at the Prime
Meridian, which is located at 0 Degrees Longitude. The local time on the display (shown above) was set for Eastern
Daylight Time (EDT). Since UT is four
hours later than EDT, the lower display indicates the equivalent time of
When you
open the Time Dialog, the clock time remains fixed at the displayed clock
setting, unless you choose to change it.
Since the lunar terminator moves slowly, (approximately 9 mph or 15 km/h), most observers can view the moon
for long periods of time before detecting any changes in the terminator’s
position. For that reason, RITI decided
that map updates should not be automatic, but should be left to the discretion
of the observer. You can refresh your
map display at any time, by simply clicking the button marked, Current.
When you
click Current, the software accesses
your computer clock, and updates the terminator, lunar libration,
and Ephemeris Data. Please keep
in mind that each time you click Current,
it will take several seconds for the software to redraw the updated map. The
map will not update if less than 5 minutes has passed, since the last
update.
Changing Times and Dates
There will be many
instances when you will want to change times and dates. To make date changes, place your cursor on
the down arrow next to the Date Display. Clicking the arrow will bring up a small
calendar. Click a new date, and then
click, Apply. If you prefer, you can also make date
changes by highlighting the numbers in the Date
Display and typing in new values.
(Alternate Method) à 
Clicking the arrows on
either side of the calendar advances the calendar forwards or backwards in
monthly increments.
Clicking on the Year, allows you to use the up and down
arrows to change the calendar in yearly increments.
To change the time, use
your mouse to highlight either hours or minutes in the Time Window, and use the up and down arrows to make the time
change.
You can reset the
display to the actual time and date by clicking the button marked, Current.
NOTE: The software permits you to select any time
and date between