I found that I had to add the degrees seperate as I was using the TIME
function (otherwise the value is not interperated as time, but as a sting) to
create a number (time) from a text string.
So I created the minutes and seconds and added the degrees/24. The help file
states that the degrees over 24 will be reduced by 24 until it is between 0
and 23.
This example I used was to create a useable value from a Lieca GSI file
created by a Total Station (surveying talk):
B7 21.324+0000000016828040
B8 168°28'04" from formula
=(LEFT(RIGHT(B7,8),3)/24)+TIME(0,LEFT(RIGHT(B7,5),2),LEFT(RIGHT(B7,3),2))
Bit hard to follow, but do a cut and paste and it should work.
Paul the Surveyor
PS. Gary's stuff is good and gave me the right pointers.