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vwload Date Format Settings
The ‑‑dateformat format | attr=format option on the vwload command sets the date format for the attribute (column).
Valid settings for format are as follows:
Setting
Valid Input Formats
Output Format
US (default)
mm/dd/yy
mm-dd-yy
mmddyy
mm/dd/yyyy
mm-dd-yyyy
yyyymmdd
dd-mmm-yyyy
dd mmm yyyy
yyyy-mm-dd
yyyy.mm.dd
yyyy_mm_dd
mm-dd
mm/dd
am and pm format in timestamp.
Only hours between 1 and 12 are valid.
am and pm must be in lowercase.
dd-mmm-yyyy
MULTINATIONAL
yyyy-mm-dd
mm-dd-yy
yyyymmdd
mmddyyyy
dd/mm/yy
dd/mm/yyyy
dd mmm yyyy
All US formats except mm/dd/yyyy and mm/dd/yy
dd/mm/yy
MULTINATIONAL4
yyyy-mm-dd
dd/mm/yy
dd/mm/yyyy
dd mmm yyyy
mm-dd-yy
mmddyy
yyyymmdd
All US formats except mm/dd/yyyy and mm/dd/yy
dd/mm/yyyy
ISO
yyyy-mm-dd
yyyymmdd
yymmdd
ymmdd
mmdd
mdd
dd mmm yyyy
All US input formats except mmddyy
yymmdd
ISO4
yyyy-mm-dd
yyyymmdd
yymmdd
ymmdd
mmdd
mdd
dd mmm yyyy
All US input formats except mmddyy
yyyymmdd
ISO4T
All ISO4 input formats.
If the prefix "T" is used then the absolute time component can use the input format hhmmss as well as the standard hh:mm:ss. For example:
Acceptable: yyyymmddThhmmss, yyyymmddThh:mm:ss, and yyyymmdd hh:mm:ss
Not acceptable:
yyyymmdd hhmmss
Acceptable:
'Thhmmss', 'Thh:mm:ss' and 'hh:mm:ss'
Not acceptable:
'hhmmss'
This is the only case where an absolute time can be entered in format hhmmss instead of hh:mm:ss. To avoid ambiguity, a time field entered in hhmmss format must be 6 characters long.
yyyymmdd
ISO4 output format, unless the date includes a time, in which case the format is: yyyymmddThhmmss
ISO4TC
See description under ISO4T.
ISO4 output format, unless the date includes a time, in which case the format is:
yyyymmddThh:mm:ss
ISO8601
All ISO input formats
yyyy-dd-mmThh:mm:ssZ
where hh is in 24-hour format and Z indicates Zulu (UTC) timezone
SWEDEN or FINLAND
yyyy-mm-dd
yy-mm-dd
mmddyy
dd mmm yyyy
All US input formats
except mm-dd-yyyy
yyyy-mm-dd
GERMAN
yyyy-mm-dd
dd.mm.yyyy
ddmmyy
dmmyy
dmmyyyy
ddmmyyyy
dd mmm yyyy
mm-dd-yy
All US input formats except yyyy.mm.dd and mmddyy
dd.mm.yyyy
YMD
mm/dd
mm-dd
mmdd
yymdd
yymmdd
yy-mm-dd
yyyymdd
yyyy-mmm-dd
yyyy/mm/dd
yyyy.mm.dd
yyyy-mm-dd
yyyy_mm_dd
yyyymmdd
yyyy mmm dd
yyyy_m[m]_d[d]
yyyy-mmm-dd
DMY
yyyy-mm-dd
yyyy_mm_dd
dd/mm
dd-mm
ddmm
ddmyy
dd-mm-yy
ddmmyy
ddmyyyy
ddmmyyyy
dd/mm/yyyy
dd-mm-yyyy
dd.mm.yyyy
dd-mmm-yyyy
dd mmm yyyy
d[d]/m[m]/[yyy]y
d[d].m[m].yyyy
dd-mmm-yyyy
MDY
yyyy-mm-dd
yyyy_mm_dd
mm/dd
mm-dd
mmdd
mmddyy
mddyy
mddyyyy
mm-dd-yy
mm-dd-yyyy
mm/dd/yyyy
mm.dd.yyyy
mmddyyyy
mmm-dd-yyyy
m[m]/d[d]/[yyy]y
m[m].d[d].yyyy
mmm-dd-yyyy
For a date that is missing the century on input, year is determined by the setting on the II_DATE_CENTURY_BOUNDARY environment variable.
In three-character month formats, for example, dd-mmm-yy, specify three-letter abbreviations for the month (for example, mar, apr, may).
To specify the current system date and time, use the constant, NOW.
Last modified date: 03/21/2024