55 — Date format
| Code | Description | History |
|---|---|---|
00
|
YYYYMMDD
modified
Common Era year, month and day (default for most dates) |
+0 · ✎41 |
01
|
YYYYMM
Year and month |
+0 |
02
|
YYYYWW
Year and week number |
+0 |
03
|
YYYYQ
Year and quarter (Q = 1, 2, 3, 4, with 1 = Jan to Mar) |
+0 |
04
|
YYYYS
Year and season (S = 1, 2, 3, 4, with 1 = ‘Spring’) |
+1 |
05
|
YYYY
Year (default for some dates) |
+1 |
06
|
YYYYMMDDYYYYMMDD
Spread of exact dates |
+1 |
07
|
YYYYMMYYYYMM
Spread of months |
+1 |
08
|
YYYYWWYYYYWW
Spread of week numbers |
+1 |
09
|
YYYYQYYYYQ
Spread of quarters |
+1 |
10
|
YYYYSYYYYS
Spread of seasons |
+1 |
11
|
YYYYYYYY
Spread of years |
+1 |
12
|
Text string
modified
For complex, approximate or uncertain dates, or dates BCE. Suggested maximum length 100 characters |
+1 · ✎62 |
13
|
YYYYMMDDThhmm
modified
Exact time. Use ONLY when exact times with hour / minute precision are relevant. By default, time is local. Alternatively, the time may be suffixed with an optional ‘Z’ for UTC times, or with ‘+’ or ‘-’ and an hhmm timezone offset from UTC. Times without a timezone are ‘rolling’ local times, times qualified with a timezone (using Z, + or -) specify a particular instant in time |
+17 · ✎18 |
14
|
YYYYMMDDThhmmss
modified
Exact time. Use ONLY when exact times with second precision are relevant. By default, time is local. Alternatively, the time may be suffixed with an optional ‘Z’ for UTC times, or with ‘+’ or ‘-’ and an hhmm timezone offset from UTC. Times without a timezone are ‘rolling’ local times, times qualified with a timezone (using Z, + or -) specify a particular instant in time |
+17 · ✎18 |
20
|
YYYYMMDD (H)
Year month day (Hijri calendar) |
+13 |
21
|
YYYYMM (H)
Year and month (Hijri calendar) |
+13 |
25
|
YYYY (H)
Year (Hijri calendar) |
+13 |
32
|
Text string (H)
For complex, approximate or uncertain dates (Hijri calendar), text would usually be in Arabic script. Suggested maximum length 100 characters |
+13 |