Entering/Converting
Time Values
NautiCalc Plus
recognizes two distinct
time values:
1. Points in Time:
9:22 AM, 5 PM
2. Time Periods:
37 Min., 45 Sec.
Time Math Rules
Addition
Period = Period
3 Hrs. + 22 Min. = 3
HR
22
MIN
Point + Period = Point
9 AM + 22 Min. = 9:22 AM
Point + Point = Error
Subtraction
Period – Period = Period
3 Hrs. – 22 Min. = 2
HR
38
MIN
Point – Period = Point
9 AM – 22 Min. = 8:38
AM
Point – Point = Period
9 AM – 8:30 AM = 30
MIN
Note:
When subtracting one point in time
from another, enter the later time first then
subtract the earlier time.
U
SING THE
N
AUTI
C
ALC
P
LUS
User’s Guide – 19