Date formats
From VistApedia
In VistA, dates are usually in FileMan Date Format [1]
- Quoting from Hardhats.org:
- VA FileMan's conventional internal format: "YYYMMDD.HHMMSS":
- YYY is number of years since 1700 (hence always 3 digits)
- MM is month number (00-12)
- DD is day number (00-31)
- HH is hour number (00-23)
- MM is minute number (01-59)
- SS is the seconds number (01-59)
- This format allows for representation of imprecise dates like JULY '78 or 1978 (which would be equivalent to 2780700 and 2780000, respectively).
- Dates are always returned as a canonic number (no trailing zeroes after the decimal).
- Today's date is usually available while VistA is running in the variable DT in FileMan format.
Mumps has the $Horolog intrinsic variable [2]
- $H[OROLOG] contains a string value specifying the number of days since "31 December, 1840,"
- and the number of seconds since midnight of date in the time zone of the process, separated by a comma (,)
And Linux has a date command.
GTM>W ! ZSYstem "date" Write "$Horolog="_$H,!,"DT=",DT Wed Sep 9 14:29:32 EDT 2015 $Horolog=63804,52172 DT=3150909
--Sherlocksfriend (talk) 12:33, 9 September 2015 (MDT)
