duration.seconds
duration: X = seconds (D)
Duration equivalent numeric values in seconds.
X = seconds (D) converts durations in D to the
equivalent number of seconds. X is a double array of the same size
as D.
Source Code: duration
As a duration method, seconds returns the duration expressed in seconds.
d = minutes (2) + seconds (30)
d = duration 2.5 min
seconds (d)
ans = 150