Caché ObjectScript Reference - InterSystems Documentation

Math and Time Functions$ZDATETIMEValidates date and time and converts to display format.$ZDATETIME(hdatetime,dformat,tformat,precision,monthlist,yearopt,startwin,endwin,mindate,maxdate,erropt)$ZDT(hdatetime,dformat,tformat,precision,monthlist,yearopt,startwin,endwin,mindate,maxdate,erropt)ParametershdatetimedformattformatprecisionmonthlistyearoptstartwinendwinmindatemaxdateerroptThe date and time value, specified in internal date and time format.Optional — The format for the returned date value.Optional — The format for the returned time value.Optional — The number of decimal places of precision (fractionalseconds) for the returned time value.Optional — A string containing a list of month names (or month nameabbreviations). This string must begin with a delimiter character, andits 12 entries must be separated by this delimiter character.Optional — A numeric code that specifies the time window in whichto display the year as a two-digit value.Optional — The start of the sliding window during which dates arerepresented with two-digit years.Optional — The end of the sliding window during which dates arerepresented with two-digit years.Optional — A numeric value that specifies the lower limit of the rangeof valid dates. If omitted or specified as -1, this limit is obtained fromthe DateMinimum property of the current locale, which defaults to zero(corresponding to December 31, 1840).Optional — The upper limit of the range of valid dates.Optional — This parameter suppresses error messages associatedwith invalid or out of range hdatetime values.Description$ZDATETIME validates a specified date and time and converts them from $HOROLOGor $ZTIMESTAMP internal format to one of several alternative date and time display formats.The exact value returned depends on the parameters you specify.344 Caché ObjectScript Reference