duration.ceil
duration: Y = ceil (D)
duration: Y = ceil (D, unit)
Round toward negative infinity for duration arrays.
Y = ceil (D) rounds each element of the duration
array D to the smallest integer number of seconds not less than
that element.
Y = ceil (D, unit) rounds each element of the
duration array D to the smallest integer number of the specified
unit of time not less than that element. unit must be one of the
following values:
'seconds' (default)
'minutes'
'hours'
'days'
'years'
Source Code: duration
ceil rounds a duration up to a whole unit.
d = minutes (90)
d = duration 90 min
ceil (d, 'hours')
ans = duration 120 min