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- Appendix A Date Formats
-
- Many places in the program you have to enter dates. GenTree is very flexible
- about the format of these dates. The basic date format is
- [Qualifier] DD-MON-YYYY [AD/BC]
- or
- Between DD-MON-YYYY and DD-MON-YYYY
- or
- Seenotes
- where Qualifier is About, Before, or After
- Between, And, and Seenotes are literals
- DD is the day, 1 or 2 digits
- MON is the at least first three letters of the month
- YYYY is the complete year (i.e. 1993, not 93).
- AD/BC are optional qualifiers, Anno Domini and Before Christ respectively
- For example, About 16-Apr-1993 is a valid date.
-
- The rules for date formats are:
- · The Qualifiers; About, Before, and After; may be used with any legal date. Ex-
- amples: "About 1892", "Before Jan 1900", and "After 100 BC".
- · The qualifier combination, Between-And, cannot be used in combination with
- any of the other qualifiers i.e. "Between About 1990 and 1991" is not legal.
- · Valid elements of a date may be in any order. The only exception is the Be-
- tween-And range date; the qualifiers must be in their correct position. Examples:
- "Jan 27 1993", "1993 Jan 27", "27 Jan 1993 About".
- · Valid elements must be separated by any non-alphanumeric character. Ex-
- amples: "7/August/1993", "Jun,3,1992", "About&3&Jun&1993".
- · Two or one digit years must have leading zeroes in front. Examples: "072 AD",
- "003 BC", "Before 001 AD".
- · Years may be entered alone (without month and day). Year and Month may be
- entered alone (without day). If you enter a day, you must have the month and
- year. Examples: "1966", "Aug 1966".
- · Seenotes cannot be used with anything else. This date should be used when
- you have a format that cannot be handled by GenTree.
- · Double dating is NOT supported i.e. "Jan 12 1772/1773".
- · Dates are not case-sensitive.
-
- When entering dates in GenTree fields, hit return to have the date format verified
- immediately. If there is something not understood, you will be notified. In addition, if
- you have set the Convert Date format in preferences, GenTree will translate your date
- to the format above.
-