| |
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. |
|
| |
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. |
|
