anchor.diff:  ** 'DD-MON-YYYY'
   ** 'DDMONYYYY'
   
  +Here, YYYY refers to a 4-digit year. YY refers to a two-digit year. MM refers to a two-digit month. MON refers to
  +a three-letter abbreviation for month ('JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG', 'SEP',
  +'OCT', 'NOV' or 'DEC'). The month may be given in lower case, upper case or any mixture.
  +
   If the _format-string_ argument is omitted, 'YYYY-MM-DD' is used as the
   default.
   
  
positive.code: 
  * `_character-expression_`
  +
  is an expression that gives a character value.
  
  [[examples_of_to_timestamp]]
  === Example of TO_TIMESTAMP
  
negative.code: ** 'MONTH DD, YYYY, HH:MI'
  ** 'DD.MM.YYYY HH24.MI.SS'
  
  Here, YYYY refers to a 4-digit year. YY refers to a two-digit year. MM refers to a two-digit month. MON refers to
  a three-letter abbreviation for month ('JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG', 'SEP',
  'OCT', 'NOV' or 'DEC'). MONTH refers to the month spelled out. The month in either MON or MONTH form may be given in lower case, upper case or any mixture.
  
  HH and HH24 refer to a 2-digit hour field. MI refers to a two-digit minutes field. SS refers to a 2-digit seconds field.
  
  [[considerations_for_to_time]]
  === Considerations for TO_TIME
  
  