Code specifying the type of period.
Type
String (AN)
Length
Max 3 / Min 1
Codes
<> 3M
Quarter
A subdivision of a year into four equal parts.
<> 6M
Half-year
A subdivision of a year into two equal parts.
<> AA
Air hour
Flight duration irrespective of time zones.
<> AD
Air day
Flight duration irrespective of time zones.
<> CD
Calendar day (includes weekends and holidays)
Period given as a number of days including weekends and holidays.
<> CW
Calendar week (7day)
Period given as a number of 7day-weeks including holidays.
<> D
Day
The twenty-four hour period during which the earth completes one rotation on its axis.
<> DC
Ten days period
Period of 10 days.
<> DW
Work day
<> F
Period of two weeks
A period of time lasting fourteen days. Synonym: Fortnight.
<> H
Hour
One of the twenty-four sub-divisions of a day.
<> HM
Half month
A subdivision of a month into two equal parts.
<> M
Month
One of twelve divisions of the year as determined by the Gregorian calendar.
<> MN
Minute
A unit of time equal to 1/60 of an hour, or 60 seconds.
<> P
Four month period
A period of time, measured in monthly increments, consisting of four sequential months.
<> S
Second
A unit of time equal to 1/60 of a minute.
<> SD
Surface day
The voyage duration irrespective of time zones.
<> SI
Indefinite
An indefinite period.
<> W
Week
Period of seven days.
<> WD
Workday
Day on which work is usually done.
<> WW
5 day work week
Monday through Friday.
<> Y
Year
The period of time as measured by the Gregorian calendar in which the earth completes a single revolution around the sun.
<> ZZZ
Mutually defined
Period as per agreement.
