You can add time using the DMS function. One degree, 60 minutes, 3600 seconds works the same as one hour, 60 minutes, 3600 seconds. Any reasonable scientific calculator will have a DMS funtion. I presume you want it for your log book, but it's also the way I recommend doing arc/time conversions for LMT problems in Gen Nav. It so much easier to divide the longitude by 15 and read the answer in DMS than use those tables. Besides, the JAA don't always give you the tables, unless there's also a Standard Time Difference or a sunrise/sunset/twilight problem.
Paul Hickley
[ 01 September 2001: Message edited by: Paul Hickley, Gen Nav Spec, Oxford ]
[ 01 September 2001: Message edited by: Paul Hickley, Gen Nav Spec, Oxford ]
[ 01 September 2001: Message edited by: Paul Hickley, Gen Nav Spec, Oxford ]